Convert models to JUnit 5

Review for models-actors

Issue-ID: POLICY-5042
Change-Id: Ica07b9fbda1eca24a8a432d57a2d9af52c84625d
Signed-off-by: waynedunican <wayne.dunican@est.tech>

105 files changed, 1794 insertions, 1701 deletions

diff --git a/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/A1pActorTest.java b/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/A1pActorTest.java
index 654c35878..c22206c3f 100644
--- a/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/A1pActorTest.java
+++ b/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/A1pActorTest.java
@@ -2,6 +2,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2022 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,20 +20,20 @@
 
 package org.onap.policy.controlloop.actor.a1p;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actor.test.BasicActor;
 import org.onap.policy.controlloop.actorserviceprovider.Operator;
 
-public class A1pActorTest extends BasicActor {
+class A1pActorTest extends BasicActor {
 
     @Test
-    public void testConstructor() {
+    void testConstructor() {
         A1pActor prov = new A1pActor();
         assertEquals(0, prov.getSequenceNumber());
 
@@ -44,13 +45,13 @@ public class A1pActorTest extends BasicActor {
     }
 
     @Test
-    public void testActorService() {
+     void testActorService() {
         // verify that it all plugs into the ActorService
         verifyActorService(A1pActor.NAME, "service.yaml");
     }
 
     @Test
-    public void testGetOperator() {
+     void testGetOperator() {
         A1pActor sp = new A1pActor();
 
         // should always return the same operator regardless of the name
diff --git a/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/A1pOperationTest.java b/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/A1pOperationTest.java
index 1d8e77147..930888da2 100644
--- a/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/A1pOperationTest.java
+++ b/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/A1pOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2022 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,69 +22,69 @@
 package org.onap.policy.controlloop.actor.a1p;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 import java.util.List;
-import org.junit.After;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.controlloop.actor.test.BasicBidirectionalTopicOperation;
 import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
 import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
 import org.onap.policy.sdnr.util.StatusCodeEnum;
 
-@RunWith(MockitoJUnitRunner.class)
-public class A1pOperationTest extends BasicA1pOperation {
+@ExtendWith(MockitoExtension.class)
+ class A1pOperationTest extends BasicA1pOperation {
 
     private A1pOperation operation;
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         BasicBidirectionalTopicOperation.initBeforeClass(MY_SINK, MY_SOURCE);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     /**
      * Setup.
      */
-    @Before
+    @BeforeEach
     @Override
-    public void setUp() throws Exception {
+     void setUp() throws Exception {
         super.setUp();
 
         operation = new A1pOperation(params, config);
         operation.setProperty(OperationProperties.EVENT_PAYLOAD, "my payload");
     }
 
-    @After
+    @AfterEach
     @Override
-    public void tearDown() {
+     void tearDown() {
         super.tearDown();
     }
 
     @Test
-    public void testA1pOperation() {
+     void testA1pOperation() {
         assertEquals(DEFAULT_ACTOR, operation.getActorName());
         assertEquals(DEFAULT_OPERATION, operation.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         assertThat(operation.getPropertyNames()).isEqualTo(List.of(OperationProperties.EVENT_PAYLOAD));
     }
 
     @Test
-    public void testSetOutcome() {
+     void testSetOutcome() {
         // with a status value
         checkOutcome();
         assertEquals(StatusCodeEnum.SUCCESS.toString(), outcome.getMessage());
diff --git a/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/BasicA1pOperation.java b/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/BasicA1pOperation.java
index 410dab176..3620b0cef 100644
--- a/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/BasicA1pOperation.java
+++ b/models-interactions/model-actors/actor.a1p/src/test/java/org/onap/policy/controlloop/actor/a1p/BasicA1pOperation.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2022 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,9 +21,9 @@
 
 package org.onap.policy.controlloop.actor.a1p;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.verify;
 
@@ -68,7 +69,7 @@ public abstract class BasicA1pOperation extends BasicBidirectionalTopicOperation
     /**
      * Initializes mocks and sets up.
      */
-    public void setUp() throws Exception {
+    void setUp() throws Exception {
         super.setUpBasic();
 
         response = new PciMessage();
@@ -85,7 +86,7 @@ public abstract class BasicA1pOperation extends BasicBidirectionalTopicOperation
         status.setValue(StatusCodeEnum.SUCCESS.toString());
     }
 
-    public void tearDown() {
+    void tearDown() {
         super.tearDownBasic();
     }
 
diff --git a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiActorTest.java b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiActorTest.java
index e56a55139..a31c7951b 100644
--- a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiActorTest.java
+++ b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiActorTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,19 +21,19 @@
 
 package org.onap.policy.controlloop.actor.aai;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Collections;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.stream.Collectors;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actor.test.BasicActor;
 
-public class AaiActorTest extends BasicActor {
+class AaiActorTest extends BasicActor {
 
     @Test
-    public void testAaiActorServiceProvider() {
+    void testAaiActorServiceProvider() {
         final AaiActor prov = new AaiActor();
 
         // verify that it has the operators we expect
diff --git a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiCustomQueryOperationTest.java b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiCustomQueryOperationTest.java
index 45db6b356..8768aec7b 100644
--- a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiCustomQueryOperationTest.java
+++ b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiCustomQueryOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,10 +22,11 @@
 package org.onap.policy.controlloop.actor.aai;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.lenient;
 import static org.mockito.Mockito.verify;
@@ -39,12 +40,12 @@ import java.util.TreeMap;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeoutException;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.aai.AaiConstants;
 import org.onap.policy.aai.AaiCqResponse;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
@@ -55,33 +56,33 @@ import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams;
 
-@RunWith(MockitoJUnitRunner.class)
-public class AaiCustomQueryOperationTest extends BasicAaiOperation {
+@ExtendWith(MockitoExtension.class)
+class AaiCustomQueryOperationTest extends BasicAaiOperation {
     private static final StandardCoder coder = new StandardCoder();
 
     private static final String MY_LINK = "my-link";
 
     private AaiCustomQueryOperation oper;
 
-    public AaiCustomQueryOperationTest() {
+    AaiCustomQueryOperationTest() {
         super(AaiConstants.ACTOR_NAME, AaiCustomQueryOperation.NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+    static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+    static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+    void setUp() throws Exception {
         super.setUpBasic();
 
         oper = new AaiCustomQueryOperation(params, config);
@@ -92,7 +93,7 @@ public class AaiCustomQueryOperationTest extends BasicAaiOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+    void testSuccess() throws Exception {
         HttpParams opParams = HttpParams.builder().clientName(MY_CLIENT).path("v16/query").build();
         config = new HttpConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
 
@@ -108,25 +109,25 @@ public class AaiCustomQueryOperationTest extends BasicAaiOperation {
     }
 
     @Test
-    public void testConstructor() {
+    void testConstructor() {
         assertEquals(AaiConstants.ACTOR_NAME, oper.getActorName());
         assertEquals(AaiCustomQueryOperation.NAME, oper.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+    void testGetPropertyNames() {
         assertThat(oper.getPropertyNames()).isEqualTo(List.of(OperationProperties.AAI_VSERVER_LINK));
     }
 
     @Test
-    public void testGenerateSubRequestId() {
+    void testGenerateSubRequestId() {
         oper.generateSubRequestId(3);
         assertEquals("3", oper.getSubRequestId());
     }
 
     @Test
     @SuppressWarnings("unchecked")
-    public void testStartOperationAsync_testMakeRequest() throws Exception {
+    void testStartOperationAsync_testMakeRequest() throws Exception {
         // need two responses
         when(rawResponse.readEntity(String.class)).thenReturn(makeTenantReply()).thenReturn(makeCqReply());
         lenient().when(webAsync.get(any(InvocationCallback.class))).thenAnswer(provideResponse(rawResponse));
@@ -140,13 +141,13 @@ public class AaiCustomQueryOperationTest extends BasicAaiOperation {
     }
 
     @Test
-    public void testMakeHeaders() {
+    void testMakeHeaders() {
         verifyHeaders(oper.makeHeaders());
     }
 
     @Test
     @SuppressWarnings("unchecked")
-    public void testMakeRequest_testGetVserverLink() throws Exception {
+    void testMakeRequest_testGetVserverLink() throws Exception {
         when(rawResponse.readEntity(String.class)).thenReturn(makeCqReply());
         when(webAsync.put(any(), any(InvocationCallback.class))).thenAnswer(provideResponse(rawResponse, 1));
 
@@ -165,18 +166,18 @@ public class AaiCustomQueryOperationTest extends BasicAaiOperation {
     }
 
     @Test
-    public void testGetVserverLink() throws Exception {
+    void testGetVserverLink() throws Exception {
         oper.setProperty(OperationProperties.AAI_VSERVER_LINK, MY_LINK);
         assertEquals(MY_LINK, oper.getVserverLink());
     }
 
     @Test
-    public void testSetOutcome() {
+     void testSetOutcome() {
         outcome = oper.setOutcome(params.makeOutcome(), OperationResult.SUCCESS, null, null);
         assertNull(outcome.getResponse());
 
         outcome = oper.setOutcome(params.makeOutcome(), OperationResult.SUCCESS, null, "{}");
-        assertTrue(outcome.getResponse() instanceof AaiCqResponse);
+        assertInstanceOf(AaiCqResponse.class, outcome.getResponse());
     }
 
     private String makeTenantReply() throws Exception {
diff --git a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetOperationTest.java b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetOperationTest.java
index e76dfbdd4..e9890b748 100644
--- a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetOperationTest.java
+++ b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,8 +21,8 @@
 
 package org.onap.policy.controlloop.actor.aai;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.times;
@@ -32,59 +32,59 @@ import static org.mockito.Mockito.when;
 import jakarta.ws.rs.client.Invocation.Builder;
 import jakarta.ws.rs.client.WebTarget;
 import java.util.Map;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.aai.AaiConstants;
 
-@RunWith(MockitoJUnitRunner.class)
-public class AaiGetOperationTest extends BasicAaiOperation {
+@ExtendWith(MockitoExtension.class)
+class AaiGetOperationTest extends BasicAaiOperation {
     private static final String MY_NAME = "my-operation-name";
     private static final String PARAM_NAME = "my-param";
     private static final String PARAM_VALUE = "my-value";
 
     private AaiGetOperation oper;
 
-    public AaiGetOperationTest() {
+    AaiGetOperationTest() {
         super(AaiConstants.ACTOR_NAME, MY_NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+    static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+    static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+    void setUp() throws Exception {
         super.setUpBasic();
         oper = new AaiGetOperation(params, config);
     }
 
     @Test
-    public void testConstructor() {
+    void testConstructor() {
         assertEquals(AaiConstants.ACTOR_NAME, oper.getActorName());
         assertEquals(MY_NAME, oper.getName());
     }
 
     @Test
-    public void testGenerateSubRequestId() {
+    void testGenerateSubRequestId() {
         oper.generateSubRequestId(3);
         assertEquals("3", oper.getSubRequestId());
     }
 
     @Test
-    public void testAddQuery() {
+    void testAddQuery() {
         WebTarget web = mock(WebTarget.class);
         when(web.queryParam(any(), any())).thenReturn(web);
 
@@ -95,7 +95,7 @@ public class AaiGetOperationTest extends BasicAaiOperation {
     }
 
     @Test
-    public void testAddHeaders() {
+    void testAddHeaders() {
         Builder bldr = mock(Builder.class);
         oper.addHeaders(bldr, Map.of("hdrA", "valA", "hdrB", "valB"));
 
@@ -105,7 +105,7 @@ public class AaiGetOperationTest extends BasicAaiOperation {
     }
 
     @Test
-    public void testGetRetry() {
+    void testGetRetry() {
         // use default if null retry
         assertEquals(AaiGetOperation.DEFAULT_RETRY, oper.getRetry(null));
 
@@ -115,7 +115,7 @@ public class AaiGetOperationTest extends BasicAaiOperation {
     }
 
     @Test
-    public void testMakeHeaders() {
+    void testMakeHeaders() {
         verifyHeaders(oper.makeHeaders());
     }
 }
diff --git a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetPnfOperationTest.java b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetPnfOperationTest.java
index c306e0031..cf2bb1b62 100644
--- a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetPnfOperationTest.java
+++ b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetPnfOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,9 +23,10 @@ package org.onap.policy.controlloop.actor.aai;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.when;
 
@@ -33,12 +34,12 @@ import jakarta.ws.rs.client.InvocationCallback;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.CompletableFuture;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.aai.AaiConstants;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.common.utils.coder.StandardCoder;
@@ -49,45 +50,45 @@ import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams;
 
-@RunWith(MockitoJUnitRunner.class)
-public class AaiGetPnfOperationTest extends BasicAaiOperation {
+@ExtendWith(MockitoExtension.class)
+class AaiGetPnfOperationTest extends BasicAaiOperation {
     private static final String INPUT_FIELD = "input";
     private static final String TEXT = "my-text";
 
     private AaiGetPnfOperation oper;
 
-    public AaiGetPnfOperationTest() {
+    AaiGetPnfOperationTest() {
         super(AaiConstants.ACTOR_NAME, AaiGetPnfOperation.NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+    static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+    static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+    void setUp() throws Exception {
         super.setUpBasic();
         oper = new AaiGetPnfOperation(params, config);
         oper.setProperty(OperationProperties.AAI_TARGET_ENTITY, TARGET_ENTITY);
     }
 
     @Test
-    public void testConstructor() {
+    void testConstructor() {
         assertEquals(AaiConstants.ACTOR_NAME, oper.getActorName());
         assertEquals(AaiGetPnfOperation.NAME, oper.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+    void testGetPropertyNames() {
         assertThat(oper.getPropertyNames()).isEqualTo(List.of(OperationProperties.AAI_TARGET_ENTITY));
     }
 
@@ -95,7 +96,7 @@ public class AaiGetPnfOperationTest extends BasicAaiOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+    void testSuccess() throws Exception {
         HttpParams opParams = HttpParams.builder().clientName(MY_CLIENT).path("v16/network/pnfs/pnf").build();
         config = new HttpConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
 
@@ -105,14 +106,14 @@ public class AaiGetPnfOperationTest extends BasicAaiOperation {
 
         outcome = oper.start().get();
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof StandardCoderObject);
+        assertInstanceOf(StandardCoderObject.class, outcome.getResponse());
     }
 
     /**
      * Tests "failure" case with simulator.
      */
     @Test
-    public void testFailure() throws Exception {
+    void testFailure() throws Exception {
         HttpParams opParams = HttpParams.builder().clientName(MY_CLIENT).path("v16/network/pnfs/pnf").build();
         config = new HttpConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
 
@@ -126,7 +127,7 @@ public class AaiGetPnfOperationTest extends BasicAaiOperation {
 
     @Test
     @SuppressWarnings("unchecked")
-    public void testStartOperationAsync_testStartQueryAsync() throws Exception {
+    void testStartOperationAsync_testStartQueryAsync() throws Exception {
 
         // return a map in the reply
         Map<String, String> reply = Map.of(INPUT_FIELD, TEXT);
@@ -153,7 +154,7 @@ public class AaiGetPnfOperationTest extends BasicAaiOperation {
      */
     @Test
     @SuppressWarnings("unchecked")
-    public void testStartOperationAsyncFailure() throws Exception {
+    void testStartOperationAsyncFailure() throws Exception {
 
         when(rawResponse.getStatus()).thenReturn(500);
         when(rawResponse.readEntity(String.class)).thenReturn("");
@@ -173,7 +174,7 @@ public class AaiGetPnfOperationTest extends BasicAaiOperation {
      * Tests startOperationAsync() when a property is missing.
      */
     @Test
-    public void testStartOperationAsyncMissingProperty() throws Exception {
+    void testStartOperationAsyncMissingProperty() throws Exception {
         oper = new AaiGetPnfOperation(params, config);
 
         oper.generateSubRequestId(1);
@@ -184,7 +185,7 @@ public class AaiGetPnfOperationTest extends BasicAaiOperation {
     }
 
     @Test
-    public void testGetKey() {
+    void testGetKey() {
         assertEquals("AAI.Pnf." + TARGET_ENTITY, AaiGetPnfOperation.getKey(TARGET_ENTITY));
     }
 }
diff --git a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetTenantOperationTest.java b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetTenantOperationTest.java
index 13b8e0536..65d3fe831 100644
--- a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetTenantOperationTest.java
+++ b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiGetTenantOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,9 +23,10 @@ package org.onap.policy.controlloop.actor.aai;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.when;
 
@@ -33,12 +34,12 @@ import jakarta.ws.rs.client.InvocationCallback;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.CompletableFuture;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.aai.AaiConstants;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.common.utils.coder.StandardCoder;
@@ -49,45 +50,45 @@ import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams;
 
-@RunWith(MockitoJUnitRunner.class)
-public class AaiGetTenantOperationTest extends BasicAaiOperation {
+@ExtendWith(MockitoExtension.class)
+class AaiGetTenantOperationTest extends BasicAaiOperation {
     private static final String INPUT_FIELD = "input";
     private static final String TEXT = "my-text";
 
     private AaiGetTenantOperation oper;
 
-    public AaiGetTenantOperationTest() {
+    AaiGetTenantOperationTest() {
         super(AaiConstants.ACTOR_NAME, AaiGetTenantOperation.NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+    static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+    static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+    void setUp() throws Exception {
         super.setUpBasic();
         oper = new AaiGetTenantOperation(params, config);
         oper.setProperty(OperationProperties.AAI_TARGET_ENTITY, TARGET_ENTITY);
     }
 
     @Test
-    public void testConstructor() {
+    void testConstructor() {
         assertEquals(AaiConstants.ACTOR_NAME, oper.getActorName());
         assertEquals(AaiGetTenantOperation.NAME, oper.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+    void testGetPropertyNames() {
         assertThat(oper.getPropertyNames()).isEqualTo(List.of(OperationProperties.AAI_TARGET_ENTITY));
     }
 
@@ -95,7 +96,7 @@ public class AaiGetTenantOperationTest extends BasicAaiOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+    void testSuccess() throws Exception {
         HttpParams opParams = HttpParams.builder().clientName(MY_CLIENT).path("v16/search/nodes-query").build();
         config = new HttpConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
 
@@ -105,14 +106,14 @@ public class AaiGetTenantOperationTest extends BasicAaiOperation {
 
         outcome = oper.start().get();
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof StandardCoderObject);
+        assertInstanceOf(StandardCoderObject.class, outcome.getResponse());
     }
 
     /**
      * Tests "failure" case with simulator.
      */
     @Test
-    public void testFailure() throws Exception {
+    void testFailure() throws Exception {
         HttpParams opParams = HttpParams.builder().clientName(MY_CLIENT).path("v16/search/nodes-query").build();
         config = new HttpConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
 
@@ -126,7 +127,7 @@ public class AaiGetTenantOperationTest extends BasicAaiOperation {
 
     @Test
     @SuppressWarnings("unchecked")
-    public void testStartOperationAsync_testStartQueryAsync() throws Exception {
+    void testStartOperationAsync_testStartQueryAsync() throws Exception {
 
         // return a map in the reply
         Map<String, String> reply = Map.of(INPUT_FIELD, TEXT);
@@ -153,7 +154,7 @@ public class AaiGetTenantOperationTest extends BasicAaiOperation {
      */
     @Test
     @SuppressWarnings("unchecked")
-    public void testStartOperationAsyncFailure() throws Exception {
+    void testStartOperationAsyncFailure() throws Exception {
 
         when(rawResponse.getStatus()).thenReturn(500);
         when(rawResponse.readEntity(String.class)).thenReturn("");
@@ -173,7 +174,7 @@ public class AaiGetTenantOperationTest extends BasicAaiOperation {
      * Tests startOperationAsync() when a property is missing.
      */
     @Test
-    public void testStartOperationAsyncMissingProperty() throws Exception {
+    void testStartOperationAsyncMissingProperty() throws Exception {
         oper = new AaiGetTenantOperation(params, config);
 
         oper.generateSubRequestId(1);
@@ -184,7 +185,7 @@ public class AaiGetTenantOperationTest extends BasicAaiOperation {
     }
 
     @Test
-    public void testGetKey() {
+    void testGetKey() {
         assertEquals("AAI.Tenant." + TARGET_ENTITY, AaiGetTenantOperation.getKey(TARGET_ENTITY));
     }
 }
diff --git a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiUtilTest.java b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiUtilTest.java
index ca8233a4d..baaf4a3ee 100644
--- a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiUtilTest.java
+++ b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/AaiUtilTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,12 +22,12 @@
 package org.onap.policy.controlloop.actor.aai;
 
 import java.util.Map;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-public class AaiUtilTest extends BasicAaiOperation {
+class AaiUtilTest extends BasicAaiOperation {
 
     @Test
-    public void testMakeHeaders() {
+    void testMakeHeaders() {
         makeContext();
 
         Map<String, Object> headers = AaiUtil.makeHeaders(params);
diff --git a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/BasicAaiOperation.java b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/BasicAaiOperation.java
index 9479d063b..0b03704e6 100644
--- a/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/BasicAaiOperation.java
+++ b/models-interactions/model-actors/actor.aai/src/test/java/org/onap/policy/controlloop/actor/aai/BasicAaiOperation.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +21,7 @@
 
 package org.onap.policy.controlloop.actor.aai;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Map;
 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
diff --git a/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/AppcActorTest.java b/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/AppcActorTest.java
index 5d9ce0d7a..eda2ab586 100644
--- a/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/AppcActorTest.java
+++ b/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/AppcActorTest.java
@@ -21,19 +21,19 @@
 
 package org.onap.policy.controlloop.actor.appc;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.stream.Stream;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.controlloop.actor.test.BasicActor;
 
-@RunWith(MockitoJUnitRunner.class)
-public class AppcActorTest extends BasicActor {
+@ExtendWith(MockitoExtension.class)
+ class AppcActorTest extends BasicActor {
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         AppcActor prov = new AppcActor();
         assertEquals(0, prov.getSequenceNumber());
 
@@ -45,7 +45,7 @@ public class AppcActorTest extends BasicActor {
     }
 
     @Test
-    public void testActorService() {
+     void testActorService() {
         // verify that it all plugs into the ActorService
         verifyActorService(AppcActor.NAME, "service.yaml");
     }
diff --git a/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/AppcOperationTest.java b/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/AppcOperationTest.java
index b6e9b34e7..caa190f71 100644
--- a/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/AppcOperationTest.java
+++ b/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/AppcOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,21 +22,21 @@
 package org.onap.policy.controlloop.actor.appc;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Map;
 import java.util.TreeMap;
-import org.junit.After;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.appc.CommonHeader;
 import org.onap.policy.appc.Request;
 import org.onap.policy.appc.ResponseCode;
@@ -46,46 +46,46 @@ import org.onap.policy.controlloop.actorserviceprovider.impl.BidirectionalTopicO
 import org.onap.policy.controlloop.actorserviceprovider.parameters.BidirectionalTopicConfig;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
 
-@RunWith(MockitoJUnitRunner.class)
-public class AppcOperationTest extends BasicAppcOperation {
+@ExtendWith(MockitoExtension.class)
+ class AppcOperationTest extends BasicAppcOperation {
     private AppcOperation oper;
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         // use same topic name for both sides
         initBeforeClass(MY_SINK, MY_SINK);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     /**
      * Sets up.
      */
-    @Before
+    @BeforeEach
     @Override
-    public void setUp() throws Exception {
+     void setUp() throws Exception {
         super.setUp();
 
         oper = new MyOper(params, config);
     }
 
-    @After
+    @AfterEach
     @Override
-    public void tearDown() {
+     void tearDown() {
         super.tearDown();
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(DEFAULT_OPERATION, oper.getName());
     }
 
     @Test
-    public void testMakeRequest() {
+     void testMakeRequest() {
         oper.generateSubRequestId(2);
         String subreq = oper.getSubRequestId();
         assertNotNull(subreq);
@@ -111,7 +111,7 @@ public class AppcOperationTest extends BasicAppcOperation {
     }
 
     @Test
-    public void testConvertPayload() {
+     void testConvertPayload() {
         Request request = oper.makeRequest(genvnf);
 
         // @formatter:off
@@ -164,7 +164,7 @@ public class AppcOperationTest extends BasicAppcOperation {
     }
 
     @Test
-    public void testGetExpectedKeyValues() {
+     void testGetExpectedKeyValues() {
         oper.generateSubRequestId(2);
         Request request = oper.makeRequest(genvnf);
         assertEquals(Arrays.asList(request.getCommonHeader().getSubRequestId()),
@@ -172,7 +172,7 @@ public class AppcOperationTest extends BasicAppcOperation {
     }
 
     @Test
-    public void testDetmStatusStringResponse() {
+     void testDetmStatusStringResponse() {
         final ResponseStatus status = response.getStatus();
 
         // null status (i.e., it's a Request, not a Response)
@@ -204,7 +204,7 @@ public class AppcOperationTest extends BasicAppcOperation {
     }
 
     @Test
-    public void testSetOutcome() {
+     void testSetOutcome() {
         final ResponseStatus status = response.getStatus();
 
         // null status
@@ -233,7 +233,7 @@ public class AppcOperationTest extends BasicAppcOperation {
 
     private class MyOper extends AppcOperation {
 
-        public MyOper(ControlLoopOperationParams params, BidirectionalTopicConfig config) {
+        MyOper(ControlLoopOperationParams params, BidirectionalTopicConfig config) {
             super(params, config, Collections.emptyList());
         }
 
diff --git a/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/BasicAppcOperation.java b/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/BasicAppcOperation.java
index 25993d385..b934d8659 100644
--- a/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/BasicAppcOperation.java
+++ b/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/BasicAppcOperation.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,16 +21,15 @@
 
 package org.onap.policy.controlloop.actor.appc;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.verify;
 
 import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
-import java.util.concurrent.TimeoutException;
 import java.util.function.BiConsumer;
 import org.onap.aai.domain.yang.GenericVnf;
 import org.onap.policy.appc.Request;
@@ -86,7 +86,7 @@ public abstract class BasicAppcOperation extends BasicBidirectionalTopicOperatio
     /**
      * Initializes mocks and sets up.
      */
-    public void setUp() throws Exception {
+    void setUp() throws Exception {
         super.setUpBasic();
 
         response = new Response();
@@ -100,7 +100,7 @@ public abstract class BasicAppcOperation extends BasicBidirectionalTopicOperatio
         genvnf.setVnfId(MY_VNF);
     }
 
-    public void tearDown() {
+    void tearDown() {
         super.tearDownBasic();
     }
 
diff --git a/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/ModifyConfigOperationTest.java b/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/ModifyConfigOperationTest.java
index e42811191..fad504434 100644
--- a/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/ModifyConfigOperationTest.java
+++ b/models-interactions/model-actors/actor.appc/src/test/java/org/onap/policy/controlloop/actor/appc/ModifyConfigOperationTest.java
@@ -22,55 +22,55 @@
 package org.onap.policy.controlloop.actor.appc;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 import java.util.List;
-import org.junit.After;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.appc.Request;
 import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.BidirectionalTopicConfig;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.BidirectionalTopicParams;
 
-@RunWith(MockitoJUnitRunner.class)
-public class ModifyConfigOperationTest extends BasicAppcOperation {
+@ExtendWith(MockitoExtension.class)
+ class ModifyConfigOperationTest extends BasicAppcOperation {
 
     private ModifyConfigOperation oper;
 
 
-    public ModifyConfigOperationTest() {
+    ModifyConfigOperationTest() {
         super(DEFAULT_ACTOR, ModifyConfigOperation.NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         // use same topic name for both sides
         initBeforeClass(MY_SINK, MY_SINK);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
-    @Before
+    @BeforeEach
     @Override
-    public void setUp() throws Exception {
+     void setUp() throws Exception {
         super.setUp();
 
         oper = new ModifyConfigOperation(params, config);
     }
 
-    @After
+    @AfterEach
     @Override
-    public void tearDown() {
+     void tearDown() {
         super.tearDown();
     }
 
@@ -78,7 +78,7 @@ public class ModifyConfigOperationTest extends BasicAppcOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         BidirectionalTopicParams opParams =
                         BidirectionalTopicParams.builder().sinkTopic(MY_SINK).sourceTopic(MY_SINK).build();
         config = new BidirectionalTopicConfig(blockingExecutor, opParams, topicMgr, AppcOperation.SELECTOR_KEYS);
@@ -96,18 +96,18 @@ public class ModifyConfigOperationTest extends BasicAppcOperation {
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(ModifyConfigOperation.NAME, oper.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         assertThat(oper.getPropertyNames()).isEqualTo(List.of(OperationProperties.AAI_RESOURCE_VNF));
     }
 
     @Test
-    public void testMakeRequest() throws CoderException {
+     void testMakeRequest() throws CoderException {
         oper.setProperty(OperationProperties.AAI_RESOURCE_VNF, genvnf);
 
         oper.generateSubRequestId(2);
diff --git a/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmActorTest.java b/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmActorTest.java
index 3ac57603b..96961f434 100644
--- a/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmActorTest.java
+++ b/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmActorTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2017-2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,15 +21,15 @@
 
 package org.onap.policy.controlloop.actor.appclcm;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.stream.Collectors;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-public class AppcLcmActorTest {
+class AppcLcmActorTest {
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         AppcLcmActor prov = new AppcLcmActor();
         assertEquals(-1, prov.getSequenceNumber());
 
diff --git a/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmOperationTest.java b/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmOperationTest.java
index e933621e9..8fa165f6f 100644
--- a/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmOperationTest.java
+++ b/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmOperationTest.java
@@ -24,25 +24,25 @@ package org.onap.policy.controlloop.actor.appclcm;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.stream.Collectors;
-import org.junit.After;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.appclcm.AppcLcmBody;
 import org.onap.policy.appclcm.AppcLcmCommonHeader;
 import org.onap.policy.appclcm.AppcLcmMessageWrapper;
@@ -64,8 +64,8 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOp
 import org.onap.policy.simulators.AppcLcmTopicServer;
 import org.onap.policy.simulators.TopicServer;
 
-@RunWith(MockitoJUnitRunner.class)
-public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcLcmMessageWrapper> {
+@ExtendWith(MockitoExtension.class)
+ class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcLcmMessageWrapper> {
 
     private static final String EXPECTED_EXCEPTION = "expected exception";
     private static final String PAYLOAD_KEY1 = "key-A";
@@ -78,21 +78,21 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
     private AppcLcmMessageWrapper response;
     private AppcLcmOperation oper;
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         initBeforeClass(MY_SINK, MY_SOURCE);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         super.setUpBasic();
 
         response = makeResponse();
@@ -101,8 +101,8 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
         oper.setProperty(OperationProperties.AAI_TARGET_ENTITY, TARGET_ENTITY);
     }
 
-    @After
-    public void tearDown() {
+    @AfterEach
+     void tearDown() {
         super.tearDownBasic();
     }
 
@@ -115,7 +115,7 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         BidirectionalTopicParams opParams =
                         BidirectionalTopicParams.builder().sinkTopic(MY_SINK).sourceTopic(MY_SOURCE).build();
         config = new BidirectionalTopicConfig(blockingExecutor, opParams, topicMgr, AppcLcmOperation.SELECTOR_KEYS);
@@ -132,18 +132,18 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(DEFAULT_OPERATION, oper.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         assertThat(oper.getPropertyNames()).isEqualTo(List.of(OperationProperties.AAI_TARGET_ENTITY));
     }
 
     @Test
-    public void testMakeRequest() {
+     void testMakeRequest() {
         oper.generateSubRequestId(2);
         String subreq = oper.getSubRequestId();
         assertNotNull(subreq);
@@ -167,7 +167,7 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
      * Tests makeRequest() when a property is missing.
      */
     @Test
-    public void testMakeRequestMissingProperty() throws Exception {
+     void testMakeRequestMissingProperty() throws Exception {
         oper = new AppcLcmOperation(params, config);
         oper.generateSubRequestId(1);
 
@@ -176,7 +176,7 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
     }
 
     @Test
-    public void testConvertPayload() {
+     void testConvertPayload() {
         // only builds a payload for ConfigModify
         params = params.toBuilder().operation(AppcLcmConstants.OPERATION_CONFIG_MODIFY).build();
         oper = new AppcLcmOperation(params, config);
@@ -207,7 +207,7 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
     }
 
     @Test
-    public void testGetExpectedKeyValues() {
+     void testGetExpectedKeyValues() {
         oper.generateSubRequestId(2);
         AppcLcmMessageWrapper request = oper.makeRequest(2);
         assertEquals(List.of(request.getBody().getInput().getCommonHeader().getSubRequestId()),
@@ -215,7 +215,7 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
     }
 
     @Test
-    public void testDetmStatus() {
+     void testDetmStatus() {
         assertEquals(Status.SUCCESS, oper.detmStatus(null, response));
 
         // failure
@@ -244,7 +244,7 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
     }
 
     @Test
-    public void testSetOutcome() {
+     void testSetOutcome() {
         oper.setOutcome(outcome, OperationResult.SUCCESS, response);
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
         assertEquals(MY_MESSAGE, outcome.getMessage());
@@ -270,7 +270,7 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
     }
 
     @Test
-    public void testGetStatus() {
+     void testGetStatus() {
         assertNotNull(oper.getStatus(response));
 
         // null status
@@ -290,14 +290,14 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
     }
 
     @Test
-    public void testOperationSupportsPayload() {
+     void testOperationSupportsPayload() {
         // these should support a payload
         Set<String> supported = Set.of(AppcLcmConstants.OPERATION_CONFIG_MODIFY);
 
         for (String name : supported) {
             params = params.toBuilder().operation(name).build();
             oper = new AppcLcmOperation(params, config);
-            assertTrue(name, oper.operationSupportsPayload());
+            assertTrue(oper.operationSupportsPayload(), name);
         }
 
         // these should NOT support a payload
@@ -307,7 +307,7 @@ public class AppcLcmOperationTest extends BasicBidirectionalTopicOperation<AppcL
         for (String name : unsupported) {
             params = params.toBuilder().operation(name).build();
             oper = new AppcLcmOperation(params, config);
-            assertFalse(name, oper.operationSupportsPayload());
+            assertFalse(oper.operationSupportsPayload(), name);
         }
 
         // pick an operation that would ordinarily support payloads
diff --git a/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmRecipeFormatterTest.java b/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmRecipeFormatterTest.java
index 110dfabd9..6f1e8f02e 100644
--- a/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmRecipeFormatterTest.java
+++ b/models-interactions/model-actors/actor.appclcm/src/test/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmRecipeFormatterTest.java
@@ -3,7 +3,7 @@
  *
  * ================================================================================
  * Copyright (C) 2018 Nokia Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,14 +21,14 @@
 
 package org.onap.policy.controlloop.actor.appclcm;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-public class AppcLcmRecipeFormatterTest {
+class AppcLcmRecipeFormatterTest {
 
     @Test
-    public void testShouldCorrectlyFormatRestartRequestWhenRestartGiven() {
+     void testShouldCorrectlyFormatRestartRequestWhenRestartGiven() {
         // given
         AppcLcmRecipeFormatter recipeFormatter = new AppcLcmRecipeFormatter("Restart");
         String expectedUrlRecipe = "restart";
@@ -44,7 +44,7 @@ public class AppcLcmRecipeFormatterTest {
     }
 
     @Test
-    public void testShouldReturnCapitalizedBodySingleWordRecipe() {
+     void testShouldReturnCapitalizedBodySingleWordRecipe() {
         // given
         AppcLcmRecipeFormatter recipeFormatter = new AppcLcmRecipeFormatter("moDify");
         String expectedRecipe = "Modify";
@@ -57,7 +57,7 @@ public class AppcLcmRecipeFormatterTest {
     }
 
     @Test
-    public void testShouldReturnCapitalizeAndJoinedBodyMultiWordRecipe() {
+     void testShouldReturnCapitalizeAndJoinedBodyMultiWordRecipe() {
         // given
         AppcLcmRecipeFormatter recipeFormatter = new AppcLcmRecipeFormatter("coNfig-moDify");
         String expectedRecipe = "ConfigModify";
@@ -70,7 +70,7 @@ public class AppcLcmRecipeFormatterTest {
     }
 
     @Test
-    public void testShouldReturnLowercasedUrlSingleWordRecipe() {
+     void testShouldReturnLowercasedUrlSingleWordRecipe() {
         // given
         AppcLcmRecipeFormatter recipeFormatter = new AppcLcmRecipeFormatter("ModIfy");
         String expectedRecipe = "modify";
@@ -83,7 +83,7 @@ public class AppcLcmRecipeFormatterTest {
     }
 
     @Test
-    public void testShouldReturnLowercasedDashJoinedUrlMultiWordRecipe() {
+     void testShouldReturnLowercasedDashJoinedUrlMultiWordRecipe() {
         // given
         AppcLcmRecipeFormatter recipeFormatter = new AppcLcmRecipeFormatter("Config-MoDify");
         String expectedRecipe = "config-modify";
diff --git a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/CdsActorTest.java b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/CdsActorTest.java
index 1d84e1c60..a3dfcaf50 100644
--- a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/CdsActorTest.java
+++ b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/CdsActorTest.java
@@ -1,7 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  * Copyright (C) 2019 Bell Canada. All rights reserved.
- * Modifications Copyright (C) 2020 Nordix Foundation.
+ * Modifications Copyright (C) 2020, 2024 Nordix Foundation.
  * Modifications Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,24 +20,24 @@
 
 package org.onap.policy.controlloop.actor.cds;
 
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actor.cds.constants.CdsActorConstants;
 import org.onap.policy.controlloop.actor.test.BasicActor;
 import org.onap.policy.controlloop.actorserviceprovider.Operator;
 
-public class CdsActorTest extends BasicActor {
+class CdsActorTest extends BasicActor {
 
     @Test
-    public void testActorService() {
+     void testActorService() {
         // verify that it all plugs into the ActorService
         verifyActorService(CdsActorConstants.CDS_ACTOR, "service.yaml");
     }
 
     @Test
-    public void testGetOperator() {
+     void testGetOperator() {
         CdsActor sp = new CdsActor();
 
         // should always return the same operator regardless of the name
diff --git a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcActorServiceManagerTest.java b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcActorServiceManagerTest.java
index 456b10fdf..dc7fcf447 100644
--- a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcActorServiceManagerTest.java
+++ b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcActorServiceManagerTest.java
@@ -2,6 +2,7 @@
  * ============LICENSE_START=======================================================
  * Copyright (C) 2020 Bell Canada. All rights reserved.
  * Modifications Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,27 +21,27 @@
 package org.onap.policy.controlloop.actor.cds;
 
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.ccsdk.cds.controllerblueprints.common.api.EventType;
 import org.onap.ccsdk.cds.controllerblueprints.common.api.Status;
 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput;
 import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
 import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
 
-@RunWith(MockitoJUnitRunner.class)
-public class GrpcActorServiceManagerTest {
+@ExtendWith(MockitoExtension.class)
+ class GrpcActorServiceManagerTest {
 
     CdsActorServiceManager manager;
     CompletableFuture<OperationOutcome> future;
@@ -49,14 +50,14 @@ public class GrpcActorServiceManagerTest {
     /**
      * Sets up the fields.
      */
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+     void setUp() throws Exception {
         future = new CompletableFuture<>();
         manager = new CdsActorServiceManager(new OperationOutcome(), future);
     }
 
     @Test
-    public void testOnMessageSuccess() throws InterruptedException, ExecutionException, TimeoutException {
+     void testOnMessageSuccess() throws InterruptedException, ExecutionException, TimeoutException {
 
         Status status = Status.newBuilder().setEventType(EventType.EVENT_COMPONENT_EXECUTED).build();
         output = ExecutionServiceOutput.newBuilder().setStatus(status).build();
@@ -67,7 +68,7 @@ public class GrpcActorServiceManagerTest {
     }
 
     @Test
-    public void testOnMessageProcessing() throws InterruptedException, ExecutionException, TimeoutException {
+     void testOnMessageProcessing() throws InterruptedException, ExecutionException, TimeoutException {
 
         Status status = Status.newBuilder().setEventType(EventType.EVENT_COMPONENT_PROCESSING).build();
         output = ExecutionServiceOutput.newBuilder().setStatus(status).build();
@@ -77,7 +78,7 @@ public class GrpcActorServiceManagerTest {
     }
 
     @Test
-    public void testOnMessageFailure() throws InterruptedException, ExecutionException, TimeoutException {
+     void testOnMessageFailure() throws InterruptedException, ExecutionException, TimeoutException {
 
         Status status = Status.newBuilder().setEventType(EventType.EVENT_COMPONENT_FAILURE).build();
         output = ExecutionServiceOutput.newBuilder().setStatus(status).build();
@@ -88,7 +89,7 @@ public class GrpcActorServiceManagerTest {
     }
 
     @Test
-    public void testOnError() throws InterruptedException, ExecutionException, TimeoutException {
+     void testOnError() throws InterruptedException, ExecutionException, TimeoutException {
 
         Exception exception = new Exception("something failed");
         manager.onError(exception);
diff --git a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcOperationTest.java b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcOperationTest.java
index cae048b17..c5a20d9f2 100644
--- a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcOperationTest.java
+++ b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcOperationTest.java
@@ -2,6 +2,7 @@
  * ============LICENSE_START=======================================================
  * Copyright (C) 2020 Bell Canada. All rights reserved.
  * Modifications Copyright (C) 2020-2022 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,9 +23,9 @@ package org.onap.policy.controlloop.actor.cds;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 import java.util.Collections;
 import java.util.HashMap;
@@ -33,13 +34,13 @@ import java.util.Map;
 import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.Executor;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.aai.domain.yang.GenericVnf;
 import org.onap.aai.domain.yang.ServiceInstance;
 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput;
@@ -60,8 +61,8 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOp
 import org.onap.policy.simulators.CdsSimulator;
 import org.onap.policy.simulators.Util;
 
-@RunWith(MockitoJUnitRunner.class)
-public class GrpcOperationTest {
+@ExtendWith(MockitoExtension.class)
+ class GrpcOperationTest {
     private static final String MY_VNF = "my-vnf";
     private static final String MY_SVC_ID = "my-service-instance-id";
     private static final String RESOURCE_ID = "my-resource-id";
@@ -86,21 +87,21 @@ public class GrpcOperationTest {
     private GrpcConfig config;
     private GrpcOperation operation;
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         sim = Util.buildCdsSim();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         sim.stop();
     }
 
     /**
      * Sets up the fields.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         // Setup the CDS properties
         cdsProps = new CdsServerProperties();
         cdsProps.setHost("10.10.10.10");
@@ -124,7 +125,7 @@ public class GrpcOperationTest {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         Map<String, Object> payload = Map.of("artifact_name", "my_artifact", "artifact_version", "1.0");
 
         params = ControlLoopOperationParams.builder().actor(CdsActorConstants.CDS_ACTOR).operation("subscribe")
@@ -145,11 +146,11 @@ public class GrpcOperationTest {
 
         OperationOutcome outcome = operation.start().get();
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof ExecutionServiceOutput);
+        assertInstanceOf(ExecutionServiceOutput.class, outcome.getResponse());
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         /*
          * check VNF case with target entities
          */
@@ -195,7 +196,7 @@ public class GrpcOperationTest {
     }
 
     @Test
-    public void testGetServiceInstanceId() {
+     void testGetServiceInstanceId() {
         params = params.toBuilder().targetType(TargetType.VNF).targetEntityIds(targetEntityIds).build();
         operation = new GrpcOperation(params, config);
         loadVnfData();
@@ -206,7 +207,7 @@ public class GrpcOperationTest {
     }
 
     @Test
-    public void testGetVnfId() {
+     void testGetVnfId() {
         params = params.toBuilder().targetType(TargetType.VNF).targetEntityIds(targetEntityIds).build();
         operation = new GrpcOperation(params, config);
         loadVnfData();
@@ -231,7 +232,7 @@ public class GrpcOperationTest {
     }
 
     @Test
-    public void testStartOperationAsync() {
+     void testStartOperationAsync() {
         ControlLoopOperationParams clop =
                 ControlLoopOperationParams.builder().actor(CdsActorConstants.CDS_ACTOR)
                         .operation(GrpcOperation.NAME)
@@ -248,7 +249,7 @@ public class GrpcOperationTest {
      * Tests startOperationAsync() when the target type is PNF.
      */
     @Test
-    public void testStartOperationAsyncPnf() {
+     void testStartOperationAsyncPnf() {
         ControlLoopOperationParams clop =
                 ControlLoopOperationParams.builder().actor(CdsActorConstants.CDS_ACTOR)
                         .operation(GrpcOperation.NAME)
@@ -261,7 +262,7 @@ public class GrpcOperationTest {
     }
 
     @Test
-    public void testStartOperationAsyncError() {
+     void testStartOperationAsyncError() {
         operation = new GrpcOperation(params, config);
         assertThatIllegalArgumentException()
                         .isThrownBy(() -> operation.startOperationAsync(1, params.makeOutcome()));
diff --git a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcOperatorTest.java b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcOperatorTest.java
index aa11d7efd..cd81dc7a5 100644
--- a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcOperatorTest.java
+++ b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/GrpcOperatorTest.java
@@ -2,6 +2,7 @@
  * ============LICENSE_START=======================================================
  * Copyright (C) 2020 Bell Canada. All rights reserved.
  * Modifications Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,14 +23,14 @@ package org.onap.policy.controlloop.actor.cds;
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Map;
 import java.util.UUID;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.cds.properties.CdsServerProperties;
 import org.onap.policy.controlloop.actor.cds.constants.CdsActorConstants;
 import org.onap.policy.controlloop.actorserviceprovider.Operation;
@@ -37,8 +38,8 @@ import org.onap.policy.controlloop.actorserviceprovider.Util;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ParameterValidationRuntimeException;
 
-@RunWith(MockitoJUnitRunner.class)
-public class GrpcOperatorTest {
+@ExtendWith(MockitoExtension.class)
+ class GrpcOperatorTest {
 
     GrpcOperator operation;
     Map<String, Object> paramMap;
@@ -47,8 +48,8 @@ public class GrpcOperatorTest {
     /**
      * Initializes fields, including {@link #operation}.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         operation = new GrpcOperator(CdsActorConstants.CDS_ACTOR, GrpcOperation.NAME, GrpcOperation::new);
 
         CdsServerProperties props = new CdsServerProperties();
@@ -64,7 +65,7 @@ public class GrpcOperatorTest {
     }
 
     @Test
-    public void testGrpcOperator() {
+     void testGrpcOperator() {
         assertEquals(CdsActorConstants.CDS_ACTOR, operation.getActorName());
         assertEquals(GrpcOperation.NAME, operation.getName());
         assertEquals(CdsActorConstants.CDS_ACTOR + "." + GrpcOperation.NAME, operation.getFullName());
@@ -72,7 +73,7 @@ public class GrpcOperatorTest {
 
 
     @Test
-    public void testDoConfigure() {
+     void testDoConfigure() {
 
         operation.doConfigure(paramMap);
         assertEquals(30000, operation.getCurrentConfig().getTimeoutMs());
@@ -83,7 +84,7 @@ public class GrpcOperatorTest {
     }
 
     @Test
-    public void testBuildOperation() {
+     void testBuildOperation() {
         ControlLoopOperationParams params = ControlLoopOperationParams.builder().actor(CdsActorConstants.CDS_ACTOR)
                         .operation(GrpcOperation.NAME).requestId(UUID.randomUUID()).build();
 
diff --git a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrcpOperationResourceVnfPropertiesTest.java b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrcpOperationResourceVnfPropertiesTest.java
index 44ebc12c5..1b20ef2bb 100644
--- a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrcpOperationResourceVnfPropertiesTest.java
+++ b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrcpOperationResourceVnfPropertiesTest.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  * Copyright (C) 2022 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,12 +20,12 @@
 package org.onap.policy.controlloop.actor.cds.properties;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 import java.util.Collections;
 import java.util.Map;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.aai.domain.yang.GenericVnf;
 import org.onap.aai.domain.yang.ServiceInstance;
 import org.onap.policy.cds.properties.CdsServerProperties;
@@ -35,16 +36,16 @@ import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
 import org.onap.policy.controlloop.actorserviceprovider.TargetType;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
 
-public class GrcpOperationResourceVnfPropertiesTest {
+class GrcpOperationResourceVnfPropertiesTest {
 
     @Test
-    public void getPropertyNames() {
+     void getPropertyNames() {
         assertEquals(GrcpOperationResourceVnfProperties.VNF_PROPERTY_NAMES,
                 new GrcpOperationResourceVnfProperties().getPropertyNames());
     }
 
     @Test
-    public void convertToAaiProperties() {
+     void convertToAaiProperties() {
         ControlLoopOperationParams params =
                 ControlLoopOperationParams.builder()
                         .targetType(TargetType.VNF)
diff --git a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationPnfPropertiesTest.java b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationPnfPropertiesTest.java
index 828ededa9..db034001a 100644
--- a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationPnfPropertiesTest.java
+++ b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationPnfPropertiesTest.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  * Copyright (C) 2022 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,12 +20,12 @@
 package org.onap.policy.controlloop.actor.cds.properties;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 import java.util.Collections;
 import java.util.Map;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.cds.properties.CdsServerProperties;
 import org.onap.policy.common.utils.coder.Coder;
 import org.onap.policy.common.utils.coder.CoderException;
@@ -37,17 +38,17 @@ import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
 import org.onap.policy.controlloop.actorserviceprovider.TargetType;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
 
-public class GrpcOperationPnfPropertiesTest {
+class GrpcOperationPnfPropertiesTest {
     private static final Coder coder = new StandardCoder();
 
     @Test
-    public void getPropertyNames() {
+     void getPropertyNames() {
         assertEquals(GrpcOperationPnfProperties.PNF_PROPERTY_NAMES,
                 new GrpcOperationPnfProperties().getPropertyNames());
     }
 
     @Test
-    public void convertToAaiProperties() throws CoderException {
+     void convertToAaiProperties() throws CoderException {
         ControlLoopOperationParams params =
                 ControlLoopOperationParams.builder()
                         .targetType(TargetType.PNF)
diff --git a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationPropertiesTest.java b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationPropertiesTest.java
index 514df4e2f..df848e6d8 100644
--- a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationPropertiesTest.java
+++ b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationPropertiesTest.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  * Copyright (C) 2022 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,18 +19,18 @@
 
 package org.onap.policy.controlloop.actor.cds.properties;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.HashMap;
 import java.util.Map;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actorserviceprovider.TargetType;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
 
-public class GrpcOperationPropertiesTest {
+class GrpcOperationPropertiesTest {
 
     @Test
-    public void build() {
+     void build() {
         ControlLoopOperationParams params = ControlLoopOperationParams.builder().targetType(TargetType.VNF).build();
         assertEquals(GrpcOperationTargetVnfProperties.VNF_PROPERTY_NAMES,
                 GrpcOperationProperties.build(params).getPropertyNames());
diff --git a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationTargetVnfPropertiesTest.java b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationTargetVnfPropertiesTest.java
index 798a96bed..dbc014203 100644
--- a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationTargetVnfPropertiesTest.java
+++ b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/properties/GrpcOperationTargetVnfPropertiesTest.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  * Copyright (C) 2022 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,12 +20,12 @@
 package org.onap.policy.controlloop.actor.cds.properties;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 import java.util.Collections;
 import java.util.Map;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.cds.properties.CdsServerProperties;
 import org.onap.policy.common.utils.time.PseudoExecutor;
 import org.onap.policy.controlloop.actor.cds.GrpcConfig;
@@ -33,16 +34,16 @@ import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
 import org.onap.policy.controlloop.actorserviceprovider.TargetType;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
 
-public class GrpcOperationTargetVnfPropertiesTest {
+class GrpcOperationTargetVnfPropertiesTest {
 
     @Test
-    public void getPropertyNames() {
+     void getPropertyNames() {
         assertEquals(GrpcOperationTargetVnfProperties.VNF_PROPERTY_NAMES,
                 new GrpcOperationTargetVnfProperties().getPropertyNames());
     }
 
     @Test
-    public void convertToAaiProperties() {
+     void convertToAaiProperties() {
         ControlLoopOperationParams params =
                 ControlLoopOperationParams.builder()
                         .targetType(TargetType.VNF)
diff --git a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/request/CdsActionRequestTest.java b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/request/CdsActionRequestTest.java
index 7266d0311..731d0d269 100644
--- a/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/request/CdsActionRequestTest.java
+++ b/models-interactions/model-actors/actor.cds/src/test/java/org/onap/policy/controlloop/actor/cds/request/CdsActionRequestTest.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  * Copyright (C) 2019 Bell Canada. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,18 +19,18 @@
 
 package org.onap.policy.controlloop.actor.cds.request;
 
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import com.google.common.collect.ImmutableMap;
 import java.util.HashMap;
 import java.util.Map;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.controlloop.actor.cds.constants.CdsActorConstants;
 
-public class CdsActionRequestTest {
+class CdsActionRequestTest {
 
     private static final String TEST_ACTION_NAME = "vfw-modify-config";
     private CdsActionRequest req = new CdsActionRequest();
@@ -37,8 +38,8 @@ public class CdsActionRequestTest {
     /**
      * Setup the CdsActionRequest object.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         req.setActionName(TEST_ACTION_NAME);
         req.setResolutionKey("1234567890");
 
@@ -51,7 +52,7 @@ public class CdsActionRequestTest {
     }
 
     @Test
-    public void testGenerateCdsPayloadWhenPolicyPayloadIsNotValidJsonString() throws CoderException {
+     void testGenerateCdsPayloadWhenPolicyPayloadIsNotValidJsonString() throws CoderException {
         String payloadStr = "active-streams=5";
         Map<String, String> payloadProps = ImmutableMap.of(CdsActorConstants.KEY_POLICY_PAYLOAD_DATA, payloadStr);
         req.setPolicyPayload(payloadProps);
@@ -67,7 +68,7 @@ public class CdsActionRequestTest {
     }
 
     @Test
-    public void testGenerateCdsPayloadWhenPolicyPayloadIsValidJsonString() throws CoderException {
+     void testGenerateCdsPayloadWhenPolicyPayloadIsValidJsonString() throws CoderException {
         String payloadStr = "{\"active-streams\":\"5\"}";
         Map<String, String> payloadProps = ImmutableMap.of(CdsActorConstants.KEY_POLICY_PAYLOAD_DATA, payloadStr);
         req.setPolicyPayload(payloadProps);
@@ -83,7 +84,7 @@ public class CdsActionRequestTest {
     }
 
     @Test
-    public void testGenerateCdsPayloadWhenPolicyPayloadIsNull() throws CoderException {
+     void testGenerateCdsPayloadWhenPolicyPayloadIsNull() throws CoderException {
         Map<String, String> payloadProps = new HashMap<String, String>() {
             private static final long serialVersionUID = 1L;
             {
diff --git a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BandwidthOnDemandOperationTest.java b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BandwidthOnDemandOperationTest.java
index 4619fee50..3510c4a67 100644
--- a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BandwidthOnDemandOperationTest.java
+++ b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BandwidthOnDemandOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,16 +23,16 @@ package org.onap.policy.controlloop.actor.sdnc;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
 
 import java.util.List;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
 import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
@@ -40,8 +40,8 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams;
 import org.onap.policy.sdnc.SdncResponse;
 
-@RunWith(MockitoJUnitRunner.class)
-public class BandwidthOnDemandOperationTest extends BasicSdncOperation {
+@ExtendWith(MockitoExtension.class)
+class BandwidthOnDemandOperationTest extends BasicSdncOperation {
     private static final String MY_SERVICE = "my-service";
     private static final String MY_VNF = "my-vnf";
     private static final String MY_BANDWIDTH = "my-bandwidth";
@@ -49,17 +49,17 @@ public class BandwidthOnDemandOperationTest extends BasicSdncOperation {
 
     private BandwidthOnDemandOperation oper;
 
-    public BandwidthOnDemandOperationTest() {
+    BandwidthOnDemandOperationTest() {
         super(DEFAULT_ACTOR, BandwidthOnDemandOperation.NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
@@ -67,20 +67,20 @@ public class BandwidthOnDemandOperationTest extends BasicSdncOperation {
      * Set up.
      */
     @Override
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+     void setUp() throws Exception {
         super.setUp();
         oper = new BandwidthOnDemandOperation(params, config);
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(BandwidthOnDemandOperation.NAME, oper.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         // @formatter:off
         assertThat(oper.getPropertyNames()).isEqualTo(
                         List.of(
@@ -96,7 +96,7 @@ public class BandwidthOnDemandOperationTest extends BasicSdncOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         HttpParams opParams = HttpParams.builder().clientName(MY_CLIENT)
                         .path("GENERIC-RESOURCE-API:vf-module-topology-operation").build();
         config = new HttpConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
@@ -111,11 +111,11 @@ public class BandwidthOnDemandOperationTest extends BasicSdncOperation {
 
         outcome = oper.start().get();
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof SdncResponse);
+        assertInstanceOf(SdncResponse.class, outcome.getResponse());
     }
 
     @Test
-    public void testMakeRequest() throws Exception {
+     void testMakeRequest() throws Exception {
         oper.setProperty(OperationProperties.ENRICHMENT_SERVICE_ID, MY_SERVICE);
         oper.setProperty(OperationProperties.ENRICHMENT_BANDWIDTH, MY_BANDWIDTH);
         oper.setProperty(OperationProperties.ENRICHMENT_BANDWIDTH_CHANGE_TIME, MY_CHANGE_TIME);
@@ -129,7 +129,7 @@ public class BandwidthOnDemandOperationTest extends BasicSdncOperation {
      */
 
     @Test
-    public void testMakeRequestMissingBandwidth() throws Exception {
+     void testMakeRequestMissingBandwidth() throws Exception {
         oper = new BandwidthOnDemandOperation(params, config);
         oper.setProperty(OperationProperties.ENRICHMENT_SERVICE_ID, MY_SERVICE);
         oper.setProperty(OperationProperties.ENRICHMENT_BANDWIDTH_CHANGE_TIME, MY_CHANGE_TIME);
@@ -143,7 +143,7 @@ public class BandwidthOnDemandOperationTest extends BasicSdncOperation {
     }
 
     @Test
-    public void testMakeRequestMissingBandwidthChangeTime() throws Exception {
+     void testMakeRequestMissingBandwidthChangeTime() throws Exception {
         oper = new BandwidthOnDemandOperation(params, config);
         oper.setProperty(OperationProperties.ENRICHMENT_SERVICE_ID, MY_SERVICE);
         oper.setProperty(OperationProperties.ENRICHMENT_BANDWIDTH, MY_BANDWIDTH);
@@ -157,7 +157,7 @@ public class BandwidthOnDemandOperationTest extends BasicSdncOperation {
     }
 
     @Test
-    public void testMakeRequestMissingVnfId() throws Exception {
+     void testMakeRequestMissingVnfId() throws Exception {
         oper = new BandwidthOnDemandOperation(params, config);
         oper.setProperty(OperationProperties.ENRICHMENT_SERVICE_ID, MY_SERVICE);
         oper.setProperty(OperationProperties.ENRICHMENT_BANDWIDTH, MY_BANDWIDTH);
diff --git a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BasicSdncOperation.java b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BasicSdncOperation.java
index a88bb0231..cfdec987d 100644
--- a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BasicSdncOperation.java
+++ b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BasicSdncOperation.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,17 +21,17 @@
 
 package org.onap.policy.controlloop.actor.sdnc;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
 
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeoutException;
+import org.mockito.Mockito;
 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.common.endpoints.http.server.HttpServletServerFactoryInstance;
@@ -47,7 +48,7 @@ import org.onap.policy.simulators.Util;
 /**
  * Superclass for various operator tests.
  */
-public abstract class BasicSdncOperation extends BasicHttpOperation {
+abstract class BasicSdncOperation extends BasicHttpOperation {
     /**
      * Fields to be ignored when comparing requests with JSON.
      */
@@ -58,7 +59,7 @@ public abstract class BasicSdncOperation extends BasicHttpOperation {
     /**
      * Constructs the object using a default actor and operation name.
      */
-    public BasicSdncOperation() {
+    BasicSdncOperation() {
         super();
     }
 
@@ -68,7 +69,7 @@ public abstract class BasicSdncOperation extends BasicHttpOperation {
      * @param actor actor name
      * @param operation operation name
      */
-    public BasicSdncOperation(String actor, String operation) {
+    BasicSdncOperation(String actor, String operation) {
         super(actor, operation);
     }
 
@@ -92,7 +93,7 @@ public abstract class BasicSdncOperation extends BasicHttpOperation {
     /**
      * Initializes mocks and sets up.
      */
-    public void setUp() throws Exception {
+    void setUp() throws Exception {
         super.setUpBasic();
 
         response = new SdncResponse();
@@ -101,7 +102,7 @@ public abstract class BasicSdncOperation extends BasicHttpOperation {
         response.setResponseOutput(output);
         output.setResponseCode("200");
 
-        when(rawResponse.readEntity(String.class)).thenReturn(new StandardCoder().encode(response));
+        Mockito.lenient().when(rawResponse.readEntity(String.class)).thenReturn(new StandardCoder().encode(response));
     }
 
     /**
diff --git a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/RerouteOperationTest.java b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/RerouteOperationTest.java
index df12ad520..5ef4b771a 100644
--- a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/RerouteOperationTest.java
+++ b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/RerouteOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,16 +22,16 @@
 package org.onap.policy.controlloop.actor.sdnc;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
 
 import java.util.List;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
 import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
@@ -39,24 +39,24 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams;
 import org.onap.policy.sdnc.SdncResponse;
 
-@RunWith(MockitoJUnitRunner.class)
-public class RerouteOperationTest extends BasicSdncOperation {
+@ExtendWith(MockitoExtension.class)
+class RerouteOperationTest extends BasicSdncOperation {
     private static final String MY_SERVICE = "my-service";
     private static final String MY_NETWORK = "my-network";
 
     private RerouteOperation oper;
 
-    public RerouteOperationTest() {
+    RerouteOperationTest() {
         super(DEFAULT_ACTOR, RerouteOperation.NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
@@ -64,8 +64,8 @@ public class RerouteOperationTest extends BasicSdncOperation {
      * Set up.
      */
     @Override
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+     void setUp() throws Exception {
         super.setUp();
         oper = new RerouteOperation(params, config);
     }
@@ -74,7 +74,7 @@ public class RerouteOperationTest extends BasicSdncOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         HttpParams opParams = HttpParams.builder().clientName(MY_CLIENT)
                         .path("GENERIC-RESOURCE-API:network-topology-operation").build();
         config = new HttpConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
@@ -87,17 +87,17 @@ public class RerouteOperationTest extends BasicSdncOperation {
 
         outcome = oper.start().get();
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof SdncResponse);
+        assertInstanceOf(SdncResponse.class, outcome.getResponse());
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(RerouteOperation.NAME, oper.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         // @formatter:off
         assertThat(oper.getPropertyNames()).isEqualTo(
                         List.of(
@@ -107,7 +107,7 @@ public class RerouteOperationTest extends BasicSdncOperation {
     }
 
     @Test
-    public void testMakeRequest() throws Exception {
+     void testMakeRequest() throws Exception {
         oper.setProperty(OperationProperties.ENRICHMENT_SERVICE_ID, MY_SERVICE);
         oper.setProperty(OperationProperties.ENRICHMENT_NETWORK_ID, MY_NETWORK);
 
diff --git a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/SdncActorTest.java b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/SdncActorTest.java
index f0f280cb6..b7b209db2 100644
--- a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/SdncActorTest.java
+++ b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/SdncActorTest.java
@@ -4,7 +4,7 @@
  * ================================================================================
  * Copyright (C) 2018-2019 Huawei. All rights reserved.
  * Modifications Copyright (C) 2018-2020 AT&T Corp. All rights reserved.
- * Modifications Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,17 +22,18 @@
 
 package org.onap.policy.controlloop.actor.sdnc;
 
-import static org.junit.Assert.assertEquals;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Arrays;
 import java.util.stream.Collectors;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actor.test.BasicActor;
 
-public class SdncActorTest extends BasicActor {
+class SdncActorTest extends BasicActor {
 
     @Test
-    public void testSdncActor() {
+     void testSdncActor() {
         final SdncActor prov = new SdncActor();
 
         // verify that it has the operators we expect
diff --git a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/SdncOperationTest.java b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/SdncOperationTest.java
index 7c9cbb150..12b6db0e5 100644
--- a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/SdncOperationTest.java
+++ b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/SdncOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,21 +21,21 @@
 
 package org.onap.policy.controlloop.actor.sdnc;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Collections;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.sdnc.SdncHealRequest;
 import org.onap.policy.sdnc.SdncHealRequestHeaderInfo;
 import org.onap.policy.sdnc.SdncRequest;
 
-@RunWith(MockitoJUnitRunner.class)
-public class SdncOperationTest extends BasicSdncOperation {
+@ExtendWith(MockitoExtension.class)
+ class SdncOperationTest extends BasicSdncOperation {
 
     private static final String MY_URI = "my-uri";
 
@@ -46,8 +46,8 @@ public class SdncOperationTest extends BasicSdncOperation {
      * Sets up.
      */
     @Override
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+     void setUp() throws Exception {
         super.setUp();
 
         request = new SdncRequest();
@@ -69,18 +69,18 @@ public class SdncOperationTest extends BasicSdncOperation {
     }
 
     @Test
-    public void testSdncOperator() {
+     void testSdncOperator() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(DEFAULT_OPERATION, oper.getName());
     }
 
     @Test
-    public void testStartOperationAsync_testStartRequestAsync() throws Exception {
+     void testStartOperationAsync_testStartRequestAsync() throws Exception {
         verifyOperation(oper);
     }
 
     @Test
-    public void testIsSuccess() {
+     void testIsSuccess() {
         // success case
         response.getResponseOutput().setResponseCode("200");
         assertTrue(oper.isSuccess(null, response));
diff --git a/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/BasicSdnrOperation.java b/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/BasicSdnrOperation.java
index 64e88aa6e..ee9a3a1f2 100644
--- a/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/BasicSdnrOperation.java
+++ b/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/BasicSdnrOperation.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,9 +21,9 @@
 
 package org.onap.policy.controlloop.actor.sdnr;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.verify;
 
@@ -45,14 +46,14 @@ import org.onap.policy.sdnr.util.StatusCodeEnum;
 import org.onap.policy.simulators.SdnrTopicServer;
 import org.onap.policy.simulators.TopicServer;
 
-public abstract class BasicSdnrOperation extends BasicBidirectionalTopicOperation<PciMessage> {
+abstract class BasicSdnrOperation extends BasicBidirectionalTopicOperation<PciMessage> {
 
     protected PciMessage response;
 
     /**
      * Constructs the object using a default actor and operation name.
      */
-    public BasicSdnrOperation() {
+    BasicSdnrOperation() {
         super();
     }
 
@@ -62,14 +63,14 @@ public abstract class BasicSdnrOperation extends BasicBidirectionalTopicOperatio
      * @param actor actor name
      * @param operation operation name
      */
-    public BasicSdnrOperation(String actor, String operation) {
+    BasicSdnrOperation(String actor, String operation) {
         super(actor, operation);
     }
 
     /**
      * Initializes mocks and sets up.
      */
-    public void setUp() throws Exception {
+    void setUp() throws Exception {
         super.setUpBasic();
 
         response = new PciMessage();
@@ -86,7 +87,7 @@ public abstract class BasicSdnrOperation extends BasicBidirectionalTopicOperatio
         status.setValue(StatusCodeEnum.SUCCESS.toString());
     }
 
-    public void tearDown() {
+    void tearDown() {
         super.tearDownBasic();
     }
 
@@ -101,7 +102,7 @@ public abstract class BasicSdnrOperation extends BasicBidirectionalTopicOperatio
      * @param operation operation to run
      */
     protected void verifyOperation(SdnrOperation operation)
-                    throws InterruptedException, ExecutionException, TimeoutException {
+        throws InterruptedException, ExecutionException, TimeoutException {
 
         CompletableFuture<OperationOutcome> future2 = operation.start();
         executor.runAll(100);
diff --git a/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/SdnrActorTest.java b/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/SdnrActorTest.java
index 0f023ff55..68a81bb14 100644
--- a/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/SdnrActorTest.java
+++ b/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/SdnrActorTest.java
@@ -3,6 +3,7 @@
  * ================================================================================
  * Copyright (C) 2018 Wipro Limited Intellectual Property. All rights reserved.
  * Modifications Copyright (C) 2019-2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,20 +21,20 @@
 
 package org.onap.policy.controlloop.actor.sdnr;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 import java.util.Arrays;
 import java.util.stream.Collectors;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actor.test.BasicActor;
 import org.onap.policy.controlloop.actorserviceprovider.Operator;
 
-public class SdnrActorTest extends BasicActor {
+class SdnrActorTest extends BasicActor {
 
     @Test
-    public void testConstructor() {
+    void testConstructor() {
         SdnrActor prov = new SdnrActor();
         assertEquals(0, prov.getSequenceNumber());
 
@@ -45,13 +46,13 @@ public class SdnrActorTest extends BasicActor {
     }
 
     @Test
-    public void testActorService() {
+    void testActorService() {
         // verify that it all plugs into the ActorService
         verifyActorService(SdnrActor.NAME, "service.yaml");
     }
 
     @Test
-    public void testGetOperator() {
+    void testGetOperator() {
         SdnrActor sp = new SdnrActor();
 
         // should always return the same operator regardless of the name
diff --git a/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/SdnrOperationTest.java b/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/SdnrOperationTest.java
index 4ad19452a..e16ad1177 100644
--- a/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/SdnrOperationTest.java
+++ b/models-interactions/model-actors/actor.sdnr/src/test/java/org/onap/policy/controlloop/actor/sdnr/SdnrOperationTest.java
@@ -23,18 +23,18 @@ package org.onap.policy.controlloop.actor.sdnr;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 import java.util.List;
-import org.junit.After;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.controlloop.actor.test.BasicBidirectionalTopicOperation;
 import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
 import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
@@ -46,52 +46,52 @@ import org.onap.policy.sdnr.PciMessage;
 import org.onap.policy.sdnr.PciRequest;
 import org.onap.policy.sdnr.util.StatusCodeEnum;
 
-@RunWith(MockitoJUnitRunner.class)
-public class SdnrOperationTest extends BasicSdnrOperation {
+@ExtendWith(MockitoExtension.class)
+ class SdnrOperationTest extends BasicSdnrOperation {
 
     private SdnrOperation operation;
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         BasicBidirectionalTopicOperation.initBeforeClass(MY_SINK, MY_SOURCE);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     /**
      * Setup.
      */
-    @Before
+    @BeforeEach
     @Override
-    public void setUp() throws Exception {
+     void setUp() throws Exception {
         super.setUp();
 
         operation = new SdnrOperation(params, config);
         operation.setProperty(OperationProperties.EVENT_PAYLOAD, "my payload");
     }
 
-    @After
+    @AfterEach
     @Override
-    public void tearDown() {
+     void tearDown() {
         super.tearDown();
     }
 
     @Test
-    public void testSdnrOperation() {
+     void testSdnrOperation() {
         assertEquals(DEFAULT_ACTOR, operation.getActorName());
         assertEquals(DEFAULT_OPERATION, operation.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         assertThat(operation.getPropertyNames()).isEqualTo(List.of(OperationProperties.EVENT_PAYLOAD));
     }
 
     @Test
-    public void testMakeRequest() {
+     void testMakeRequest() {
         operation.generateSubRequestId(1);
 
         PciMessage request = operation.makeRequest(1);
@@ -114,7 +114,7 @@ public class SdnrOperationTest extends BasicSdnrOperation {
      * Tests makeRequest() when a property is missing.
      */
     @Test
-    public void testMakeRequestMissingProperty() {
+     void testMakeRequestMissingProperty() {
         operation = new SdnrOperation(params, config);
 
         operation.generateSubRequestId(1);
@@ -125,7 +125,7 @@ public class SdnrOperationTest extends BasicSdnrOperation {
     }
 
     @Test
-    public void testGetExpectedKeyValues() {
+     void testGetExpectedKeyValues() {
         operation.generateSubRequestId(1);
 
         PciMessage request = operation.makeRequest(1);
@@ -137,7 +137,7 @@ public class SdnrOperationTest extends BasicSdnrOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         BidirectionalTopicParams opParams =
                         BidirectionalTopicParams.builder().sinkTopic(MY_SINK).sourceTopic(MY_SOURCE).build();
         config = new BidirectionalTopicConfig(blockingExecutor, opParams, topicMgr, SdnrOperation.SELECTOR_KEYS);
@@ -154,7 +154,7 @@ public class SdnrOperationTest extends BasicSdnrOperation {
     }
 
     @Test
-    public void testDetmStatusStringResponse() {
+     void testDetmStatusStringResponse() {
         final org.onap.policy.sdnr.Status status = response.getBody().getOutput().getStatus();
 
         // null status
@@ -193,7 +193,7 @@ public class SdnrOperationTest extends BasicSdnrOperation {
     }
 
     @Test
-    public void testSetOutcome() {
+     void testSetOutcome() {
         // with a status value
         checkOutcome();
         assertEquals(StatusCodeEnum.SUCCESS.toString(), outcome.getMessage());
diff --git a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/BasicSoOperation.java b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/BasicSoOperation.java
index 1e38861e2..286ed3ce4 100644
--- a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/BasicSoOperation.java
+++ b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/BasicSoOperation.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -47,20 +47,20 @@ import org.onap.policy.so.SoResponse;
 /**
  * Superclass for various operator tests.
  */
-public abstract class BasicSoOperation extends BasicHttpOperation {
+abstract class BasicSoOperation extends BasicHttpOperation {
     protected static final String[] IGNORE_FIELDS = {"RequestID", "subRequestID", "seconds", "nanos"};
 
-    public static final String MODEL_CUSTOM_ID = "my-model-customization-id";
-    public static final String MODEL_INVAR_ID = "my-model-invariant-id";
-    public static final String MODEL_NAME = "my-model-name";
-    public static final String MODEL_VERSION = "my-model-version";
-    public static final String MODEL_VERS_ID = "my-model-version-id";
-    public static final String SUBSCRIPTION_SVC_TYPE = "my-subscription-service-type";
-    public static final String MY_PATH = "my-path";
-    public static final String POLL_PATH = "my-poll-path/";
-    public static final int MAX_POLLS = 3;
-    public static final int POLL_WAIT_SEC = 20;
-    public static final Integer VF_COUNT = 10;
+    static final String MODEL_CUSTOM_ID = "my-model-customization-id";
+    static final String MODEL_INVAR_ID = "my-model-invariant-id";
+    static final String MODEL_NAME = "my-model-name";
+    static final String MODEL_VERSION = "my-model-version";
+    static final String MODEL_VERS_ID = "my-model-version-id";
+    static final String SUBSCRIPTION_SVC_TYPE = "my-subscription-service-type";
+    static final String MY_PATH = "my-path";
+    static final String POLL_PATH = "my-poll-path/";
+    static final int MAX_POLLS = 3;
+    static final int POLL_WAIT_SEC = 20;
+    static final Integer VF_COUNT = 10;
 
     @Mock
     protected HttpPollingConfig config;
@@ -72,7 +72,7 @@ public abstract class BasicSoOperation extends BasicHttpOperation {
     /**
      * Constructs the object using a default actor and operation name.
      */
-    public BasicSoOperation() {
+    BasicSoOperation() {
         super();
     }
 
@@ -82,7 +82,7 @@ public abstract class BasicSoOperation extends BasicHttpOperation {
      * @param actor actor name
      * @param operation operation name
      */
-    public BasicSoOperation(String actor, String operation) {
+    BasicSoOperation(String actor, String operation) {
         super(actor, operation);
     }
 
@@ -93,8 +93,8 @@ public abstract class BasicSoOperation extends BasicHttpOperation {
         org.onap.policy.simulators.Util.buildSoSim();
 
         BusTopicParams clientParams = BusTopicParams.builder().clientName(MY_CLIENT).basePath("").hostname("localhost")
-                        .managed(true).port(org.onap.policy.simulators.Util.SOSIM_SERVER_PORT)
-                        .build();
+            .managed(true).port(org.onap.policy.simulators.Util.SOSIM_SERVER_PORT)
+            .build();
         HttpClientFactoryInstance.getClientFactory().build(clientParams);
 
         SoSimulatorJaxRs.setRequirePolling(true);
@@ -109,7 +109,7 @@ public abstract class BasicSoOperation extends BasicHttpOperation {
     /**
      * Initializes mocks and sets up.
      */
-    public void setUp() throws Exception {
+    void setUp() throws Exception {
         super.setUpBasic();
 
         response = new SoResponse();
diff --git a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/ModifyCllTest.java b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/ModifyCllTest.java
index f7a59201d..ff1a93b85 100644
--- a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/ModifyCllTest.java
+++ b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/ModifyCllTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2022 CTC, Inc. and others. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,17 +24,17 @@ package org.onap.policy.controlloop.actor.so;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.List;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.common.utils.resources.ResourceUtils;
 import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
@@ -43,35 +43,35 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingCo
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingParams;
 import org.onap.policy.so.SoResponse;
 
-@RunWith(MockitoJUnitRunner.class)
-public class ModifyCllTest extends BasicSoOperation {
+@ExtendWith(MockitoExtension.class)
+class ModifyCllTest extends BasicSoOperation {
 
     private ModifyCll oper;
 
 
-    public ModifyCllTest() {
+    ModifyCllTest() {
         super(DEFAULT_ACTOR, ModifyCll.NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     @Override
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+     void setUp() throws Exception {
         super.setUp();
         oper = new ModifyCll(params, config);
     }
 
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         HttpPollingParams opParams = HttpPollingParams.builder().clientName(MY_CLIENT)
                 .path("infra/serviceIntent/v1/modify")
                 .pollPath("orchestrationRequests/v5/").maxPolls(2).build();
@@ -87,7 +87,7 @@ public class ModifyCllTest extends BasicSoOperation {
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(ModifyCll.NAME, oper.getName());
         assertFalse(oper.isUsePolling());
@@ -98,7 +98,7 @@ public class ModifyCllTest extends BasicSoOperation {
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         assertThat(oper.getPropertyNames()).isEqualTo(List.of(OperationProperties.EVENT_PAYLOAD));
     }
 
@@ -110,7 +110,7 @@ public class ModifyCllTest extends BasicSoOperation {
      * Tests makeRequest() when a property is missing.
      */
     @Test
-    public void testMakeRequestMissingProperty() throws Exception {
+     void testMakeRequestMissingProperty() throws Exception {
         oper = new ModifyCll(params, config);
 
         assertThatIllegalStateException().isThrownBy(() -> oper.makeRequest())
diff --git a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/ModifyNssiTest.java b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/ModifyNssiTest.java
index 8a31f2c93..c5c183275 100644
--- a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/ModifyNssiTest.java
+++ b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/ModifyNssiTest.java
@@ -4,7 +4,7 @@
  * ================================================================================
  * Copyright (C) 2020 Wipro Limited.
  * Modifications Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2020,2023 Nordix Foundation.
+ * Modifications Copyright (C) 2020,2023,2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,17 +25,17 @@ package org.onap.policy.controlloop.actor.so;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
 
 import java.util.List;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.common.utils.resources.ResourceUtils;
 import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
@@ -44,35 +44,35 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingCo
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingParams;
 import org.onap.policy.so.SoResponse;
 
-@RunWith(MockitoJUnitRunner.class)
-public class ModifyNssiTest extends BasicSoOperation {
+@ExtendWith(MockitoExtension.class)
+class ModifyNssiTest extends BasicSoOperation {
 
     private ModifyNssi oper;
 
 
-    public ModifyNssiTest() {
+    ModifyNssiTest() {
         super(DEFAULT_ACTOR, ModifyNssi.NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     @Override
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+     void setUp() throws Exception {
         super.setUp();
         oper = new ModifyNssi(params, config);
     }
 
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         HttpPollingParams opParams = HttpPollingParams.builder().clientName(MY_CLIENT).path("3gppservices/v7/modify")
                 .pollPath("orchestrationRequests/v5/").maxPolls(2).build();
         config = new HttpPollingConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
@@ -83,11 +83,11 @@ public class ModifyNssiTest extends BasicSoOperation {
         outcome = oper.start().get();
 
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof SoResponse);
+        assertInstanceOf(SoResponse.class, outcome.getResponse());
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(ModifyNssi.NAME, oper.getName());
         assertFalse(oper.isUsePolling());
@@ -98,7 +98,7 @@ public class ModifyNssiTest extends BasicSoOperation {
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         assertThat(oper.getPropertyNames()).isEqualTo(List.of(OperationProperties.EVENT_PAYLOAD));
     }
 
@@ -110,7 +110,7 @@ public class ModifyNssiTest extends BasicSoOperation {
      * Tests makeRequest() when a property is missing.
      */
     @Test
-    public void testMakeRequestMissingProperty() throws Exception {
+     void testMakeRequestMissingProperty() throws Exception {
         oper = new ModifyNssi(params, config);
 
         assertThatIllegalStateException().isThrownBy(() -> oper.makeRequest())
diff --git a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/RestManagerResponseTest.java b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/RestManagerResponseTest.java
index 2055adbc8..8b5a050b6 100644
--- a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/RestManagerResponseTest.java
+++ b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/RestManagerResponseTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,16 +24,16 @@ package org.onap.policy.controlloop.actor.so;
 import static org.assertj.core.api.Assertions.assertThatCode;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 import jakarta.ws.rs.core.GenericType;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.utils.coder.Coder;
 import org.onap.policy.common.utils.coder.StandardCoder;
 
-public class RestManagerResponseTest {
+class RestManagerResponseTest {
     private static final Coder coder = new StandardCoder();
 
     private static final int MY_STATUS = 200;
@@ -41,23 +41,23 @@ public class RestManagerResponseTest {
 
     private RestManagerResponse resp;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         resp = new RestManagerResponse(MY_STATUS, MY_TEXT, coder);
     }
 
     @Test
-    public void testGetStatus() {
+     void testGetStatus() {
         assertEquals(MY_STATUS, resp.getStatus());
     }
 
     @Test
-    public void testClose() {
+     void testClose() {
         assertThatCode(() -> resp.close()).doesNotThrowAnyException();
     }
 
     @Test
-    public void testReadEntityClassOfT() {
+     void testReadEntityClassOfT() {
         // try with JSON
         MyObject obj = resp.readEntity(MyObject.class);
         assertNotNull(obj);
@@ -75,7 +75,7 @@ public class RestManagerResponseTest {
 
     @Test
     @SuppressWarnings("unchecked")
-    public void testUnsupported() {
+     void testUnsupported() {
         GenericType<String> generic = GenericType.forInstance(String.class);
 
         assertThatThrownBy(() -> resp.hasEntity()).isInstanceOf(UnsupportedOperationException.class);
diff --git a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/SoActorTest.java b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/SoActorTest.java
index a06c91817..9cd1bea7a 100644
--- a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/SoActorTest.java
+++ b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/SoActorTest.java
@@ -4,7 +4,7 @@
  * ================================================================================
  * Copyright (C) 2018 Ericsson. All rights reserved.
  * Modifications Copyright (C) 2018-2020 AT&T. All rights reserved.
- * Modifications Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019, 2024 Nordix Foundation.
  * Modifications Copyright (C) 2020 Wipro Limited.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -23,29 +23,29 @@
 
 package org.onap.policy.controlloop.actor.so;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Arrays;
 import java.util.stream.Collectors;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actor.test.BasicActor;
 
-public class SoActorTest extends BasicActor {
+class SoActorTest extends BasicActor {
 
     @Test
-    public void testConstructor() {
+    void testConstructor() {
         SoActor prov = new SoActor();
 
         // verify that it has the operators we expect
         var expected = Arrays.asList(VfModuleCreate.NAME, VfModuleDelete.NAME, ModifyNssi.NAME, ModifyCll.NAME).stream()
-                .sorted().collect(Collectors.toList());
+            .sorted().collect(Collectors.toList());
         var actual = prov.getOperationNames().stream().sorted().collect(Collectors.toList());
 
         assertEquals(expected.toString(), actual.toString());
     }
 
     @Test
-    public void testActorService() {
+    void testActorService() {
         // verify that it all plugs into the ActorService
         verifyActorService(SoActor.NAME, "service.yaml");
     }
diff --git a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/SoOperationTest.java b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/SoOperationTest.java
index a2d392510..fe88a2371 100644
--- a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/SoOperationTest.java
+++ b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/SoOperationTest.java
@@ -4,7 +4,7 @@
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
  * Modifications Copyright (C) 2020 Wipro Limited.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,11 +24,11 @@ package org.onap.policy.controlloop.actor.so;
 
 import static org.assertj.core.api.Assertions.assertThatCode;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.lenient;
 
 import java.time.LocalDateTime;
@@ -36,10 +36,10 @@ import java.time.Month;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.aai.domain.yang.CloudRegion;
 import org.onap.aai.domain.yang.Tenant;
 import org.onap.policy.common.utils.coder.Coder;
@@ -53,8 +53,8 @@ import org.onap.policy.so.SoRequestInfo;
 import org.onap.policy.so.SoRequestStatus;
 import org.onap.policy.so.SoResponse;
 
-@RunWith(MockitoJUnitRunner.class)
-public class SoOperationTest extends BasicSoOperation {
+@ExtendWith(MockitoExtension.class)
+ class SoOperationTest extends BasicSoOperation {
 
     private static final List<String> PROP_NAMES = Collections.emptyList();
 
@@ -64,8 +64,8 @@ public class SoOperationTest extends BasicSoOperation {
      * Sets up.
      */
     @Override
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+     void setUp() throws Exception {
         super.setUp();
 
         initConfig();
@@ -74,7 +74,7 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(DEFAULT_OPERATION, oper.getName());
         assertSame(config, oper.getConfig());
@@ -86,7 +86,7 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testValidateTarget() {
+     void testValidateTarget() {
         // check when various fields are null
         verifyNotNull(ControlLoopOperationParams.PARAMS_ENTITY_MODEL_CUSTOMIZATION_ID, targetEntities);
         verifyNotNull(ControlLoopOperationParams.PARAMS_ENTITY_MODEL_INVARIANT_ID, targetEntities);
@@ -108,7 +108,7 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testGetRequestState() {
+     void testGetRequestState() {
         SoResponse resp = new SoResponse();
         assertNull(oper.getRequestState(resp));
 
@@ -125,7 +125,7 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testIsSuccess() {
+     void testIsSuccess() {
         // always true
 
         assertTrue(oper.isSuccess(rawResponse, response));
@@ -135,7 +135,7 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testSetOutcome() {
+     void testSetOutcome() {
         // success case
         lenient().when(rawResponse.getStatus()).thenReturn(200);
         assertSame(outcome, oper.setOutcome(outcome, OperationResult.SUCCESS, rawResponse, response));
@@ -154,7 +154,7 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testPrepareSoModelInfo() throws CoderException {
+     void testPrepareSoModelInfo() throws CoderException {
         // valid data
         SoModelInfo info = oper.prepareSoModelInfo();
         verifyRequest("model.json", info);
@@ -166,13 +166,13 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testConstructRequestInfo() throws CoderException {
+     void testConstructRequestInfo() throws CoderException {
         SoRequestInfo info = oper.constructRequestInfo();
         verifyRequest("reqinfo.json", info);
     }
 
     @Test
-    public void testBuildRequestParameters() throws CoderException {
+     void testBuildRequestParameters() throws CoderException {
         // valid data
         verifyRequest("reqparams.json", oper.buildRequestParameters().get());
 
@@ -192,7 +192,7 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testBuildConfigurationParameters() {
+     void testBuildConfigurationParameters() {
         // valid data
         assertEquals(List.of(Collections.emptyMap()), oper.buildConfigurationParameters().get());
 
@@ -212,7 +212,7 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testConstructCloudConfiguration() throws Exception {
+     void testConstructCloudConfiguration() throws Exception {
         Tenant tenantItem = new Tenant();
         tenantItem.setTenantId("my-tenant-id");
 
@@ -235,7 +235,7 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testGetRequiredText() throws Exception {
+     void testGetRequiredText() throws Exception {
 
         assertThatCode(() -> oper.getRequiredText("some value", "my value")).doesNotThrowAnyException();
 
@@ -244,7 +244,7 @@ public class SoOperationTest extends BasicSoOperation {
     }
 
     @Test
-    public void testGetCoder() throws CoderException {
+     void testGetCoder() throws CoderException {
         Coder opcoder = oper.getCoder();
 
         // ensure we can decode an SO timestamp
diff --git a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/VfModuleCreateTest.java b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/VfModuleCreateTest.java
index ad242c0dc..721cb6a6d 100644
--- a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/VfModuleCreateTest.java
+++ b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/VfModuleCreateTest.java
@@ -4,7 +4,7 @@
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
  * Modifications Copyright (C) 2020 Wipro Limited.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,9 +24,10 @@ package org.onap.policy.controlloop.actor.so;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.when;
 
@@ -35,12 +36,12 @@ import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ForkJoinPool;
 import java.util.concurrent.TimeUnit;
 import org.apache.commons.lang3.tuple.Pair;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.aai.domain.yang.CloudRegion;
 import org.onap.aai.domain.yang.GenericVnf;
 import org.onap.aai.domain.yang.ModelVer;
@@ -56,8 +57,8 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingPa
 import org.onap.policy.so.SoRequest;
 import org.onap.policy.so.SoResponse;
 
-@RunWith(MockitoJUnitRunner.class)
-public class VfModuleCreateTest extends BasicSoOperation {
+@ExtendWith(MockitoExtension.class)
+class VfModuleCreateTest extends BasicSoOperation {
 
 
     private static final String MODEL_NAME2 = "my-model-name-B";
@@ -67,26 +68,26 @@ public class VfModuleCreateTest extends BasicSoOperation {
 
     private VfModuleCreate oper;
 
-    public VfModuleCreateTest() {
+    VfModuleCreateTest() {
         super(DEFAULT_ACTOR, VfModuleCreate.NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+    static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+    static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     /**
      * Sets up.
      */
-    @Before
+    @BeforeEach
     @Override
-    public void setUp() throws Exception {
+    void setUp() throws Exception {
         super.setUp();
         oper = new VfModuleCreate(params, config);
         loadProperties();
@@ -96,10 +97,10 @@ public class VfModuleCreateTest extends BasicSoOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+    void testSuccess() throws Exception {
         HttpPollingParams opParams = HttpPollingParams.builder().clientName(MY_CLIENT)
-                        .path("serviceInstantiation/v7/serviceInstances").pollPath("orchestrationRequests/v5/")
-                        .maxPolls(2).build();
+            .path("serviceInstantiation/v7/serviceInstances").pollPath("orchestrationRequests/v5/")
+            .maxPolls(2).build();
         config = new HttpPollingConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
 
         params = params.toBuilder().retry(0).timeoutSec(5).executor(blockingExecutor).build();
@@ -111,14 +112,14 @@ public class VfModuleCreateTest extends BasicSoOperation {
         // run the operation
         outcome = oper.start().get();
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof SoResponse);
+        assertInstanceOf(SoResponse.class, outcome.getResponse());
 
         int count = oper.getProperty(OperationProperties.DATA_VF_COUNT);
         assertEquals(VF_COUNT + 1, count);
     }
 
     @Test
-    public void testConstructor() {
+    void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(VfModuleCreate.NAME, oper.getName());
         assertTrue(oper.isUsePolling());
@@ -126,26 +127,26 @@ public class VfModuleCreateTest extends BasicSoOperation {
         // verify that target validation is done
         params = params.toBuilder().targetType(null).build();
         assertThatIllegalArgumentException().isThrownBy(() -> new VfModuleCreate(params, config))
-                        .withMessageContaining("Target information");
+            .withMessageContaining("Target information");
     }
 
     @Test
-    public void testGetPropertyNames() {
+    void testGetPropertyNames() {
         // @formatter:off
         assertThat(oper.getPropertyNames()).isEqualTo(
-                        List.of(
-                            OperationProperties.AAI_SERVICE,
-                            OperationProperties.AAI_SERVICE_MODEL,
-                            OperationProperties.AAI_VNF,
-                            OperationProperties.AAI_VNF_MODEL,
-                            OperationProperties.AAI_DEFAULT_CLOUD_REGION,
-                            OperationProperties.AAI_DEFAULT_TENANT,
-                            OperationProperties.DATA_VF_COUNT));
+            List.of(
+                OperationProperties.AAI_SERVICE,
+                OperationProperties.AAI_SERVICE_MODEL,
+                OperationProperties.AAI_VNF,
+                OperationProperties.AAI_VNF_MODEL,
+                OperationProperties.AAI_DEFAULT_CLOUD_REGION,
+                OperationProperties.AAI_DEFAULT_TENANT,
+                OperationProperties.DATA_VF_COUNT));
         // @formatter:on
     }
 
     @Test
-    public void testStartOperationAsync_testSuccessfulCompletion() throws Exception {
+    void testStartOperationAsync_testSuccessfulCompletion() throws Exception {
         when(client.post(any(), any(), any(), any())).thenAnswer(provideResponse(rawResponse));
 
         // use a real executor
@@ -179,7 +180,7 @@ public class VfModuleCreateTest extends BasicSoOperation {
      * Tests startOperationAsync() when polling is required.
      */
     @Test
-    public void testStartOperationAsyncWithPolling() throws Exception {
+    void testStartOperationAsyncWithPolling() throws Exception {
         when(rawResponse.getStatus()).thenReturn(500, 500, 500, 500, 200, 200);
 
         when(client.post(any(), any(), any(), any())).thenAnswer(provideResponse(rawResponse));
@@ -204,7 +205,7 @@ public class VfModuleCreateTest extends BasicSoOperation {
     }
 
     @Test
-    public void testMakeRequest() throws CoderException {
+    void testMakeRequest() throws CoderException {
         Pair<String, SoRequest> pair = oper.makeRequest();
 
         // @formatter:off
@@ -220,14 +221,14 @@ public class VfModuleCreateTest extends BasicSoOperation {
      * Tests makeRequest() when a property is missing.
      */
     @Test
-    public void testMakeRequestMissingProperty() throws Exception {
+    void testMakeRequestMissingProperty() throws Exception {
         loadProperties();
 
         ServiceInstance instance = new ServiceInstance();
         oper.setProperty(OperationProperties.AAI_SERVICE, instance);
 
         assertThatIllegalArgumentException().isThrownBy(() -> oper.makeRequest())
-                        .withMessageContaining("missing service instance ID");
+            .withMessageContaining("missing service instance ID");
     }
 
     private void loadProperties() {
diff --git a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/VfModuleDeleteTest.java b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/VfModuleDeleteTest.java
index 10f3f2bed..5ece1968d 100644
--- a/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/VfModuleDeleteTest.java
+++ b/models-interactions/model-actors/actor.so/src/test/java/org/onap/policy/controlloop/actor/so/VfModuleDeleteTest.java
@@ -4,7 +4,7 @@
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
  * Modifications Copyright (C) 2020 Wipro Limited.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,10 +24,11 @@ package org.onap.policy.controlloop.actor.so;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.lenient;
 import static org.mockito.Mockito.mock;
@@ -50,14 +51,14 @@ import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ForkJoinPool;
 import java.util.concurrent.TimeUnit;
 import org.apache.commons.lang3.tuple.Pair;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.aai.domain.yang.CloudRegion;
 import org.onap.aai.domain.yang.GenericVnf;
 import org.onap.aai.domain.yang.ServiceInstance;
@@ -73,8 +74,8 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingPa
 import org.onap.policy.so.SoRequest;
 import org.onap.policy.so.SoResponse;
 
-@RunWith(MockitoJUnitRunner.class)
-public class VfModuleDeleteTest extends BasicSoOperation {
+@ExtendWith(MockitoExtension.class)
+class VfModuleDeleteTest extends BasicSoOperation {
     private static final String EXPECTED_EXCEPTION = "expected exception";
     private static final String SVC_INSTANCE_ID = "my-service-instance-id";
     private static final String VNF_ID = "my-vnf-id";
@@ -89,17 +90,17 @@ public class VfModuleDeleteTest extends BasicSoOperation {
     private CompletableFuture<HttpResponse<String>> javaFuture;
     private VfModuleDelete oper;
 
-    public VfModuleDeleteTest() {
+    VfModuleDeleteTest() {
         super(DEFAULT_ACTOR, VfModuleDelete.NAME);
     }
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+    static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+    static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
@@ -107,8 +108,8 @@ public class VfModuleDeleteTest extends BasicSoOperation {
      * Sets up.
      */
     @Override
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+    void setUp() throws Exception {
         super.setUp();
 
         initHostPort();
@@ -124,9 +125,9 @@ public class VfModuleDeleteTest extends BasicSoOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+    void testSuccess() throws Exception {
         HttpPollingParams opParams = HttpPollingParams.builder().clientName(MY_CLIENT).path("serviceInstances/v7")
-                        .pollPath("orchestrationRequests/v5/").maxPolls(2).build();
+            .pollPath("orchestrationRequests/v5/").maxPolls(2).build();
         config = new HttpPollingConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
 
         params = params.toBuilder().retry(0).timeoutSec(5).executor(blockingExecutor).build();
@@ -138,14 +139,14 @@ public class VfModuleDeleteTest extends BasicSoOperation {
         // run the operation
         outcome = oper.start().get();
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof SoResponse);
+        assertInstanceOf(SoResponse.class, outcome.getResponse());
 
         int count = oper.getProperty(OperationProperties.DATA_VF_COUNT);
         assertEquals(VF_COUNT - 1, count);
     }
 
     @Test
-    public void testConstructor() {
+    void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(VfModuleDelete.NAME, oper.getName());
         assertTrue(oper.isUsePolling());
@@ -153,24 +154,24 @@ public class VfModuleDeleteTest extends BasicSoOperation {
         // verify that target validation is done
         params = params.toBuilder().targetType(null).build();
         assertThatIllegalArgumentException().isThrownBy(() -> new MyOperation(params, config))
-                        .withMessageContaining("Target information");
+            .withMessageContaining("Target information");
     }
 
     @Test
-    public void testGetPropertyNames() {
+    void testGetPropertyNames() {
         // @formatter:off
         assertThat(oper.getPropertyNames()).isEqualTo(
-                        List.of(
-                            OperationProperties.AAI_SERVICE,
-                            OperationProperties.AAI_VNF,
-                            OperationProperties.AAI_DEFAULT_CLOUD_REGION,
-                            OperationProperties.AAI_DEFAULT_TENANT,
-                            OperationProperties.DATA_VF_COUNT));
+            List.of(
+                OperationProperties.AAI_SERVICE,
+                OperationProperties.AAI_VNF,
+                OperationProperties.AAI_DEFAULT_CLOUD_REGION,
+                OperationProperties.AAI_DEFAULT_TENANT,
+                OperationProperties.DATA_VF_COUNT));
         // @formatter:on
     }
 
     @Test
-    public void testStartOperationAsync_testSuccessfulCompletion() throws Exception {
+    void testStartOperationAsync_testSuccessfulCompletion() throws Exception {
         // use a real executor
         params = params.toBuilder().executor(ForkJoinPool.commonPool()).build();
 
@@ -202,7 +203,7 @@ public class VfModuleDeleteTest extends BasicSoOperation {
      * Tests startOperationAsync() when polling is required.
      */
     @Test
-    public void testStartOperationAsyncWithPolling() throws Exception {
+    void testStartOperationAsyncWithPolling() throws Exception {
 
         // indicate that the response was incomplete
         configureResponse(coder.encode(response).replace("COMPLETE", "incomplete"));
@@ -229,7 +230,7 @@ public class VfModuleDeleteTest extends BasicSoOperation {
     }
 
     @Test
-    public void testMakeRequest() throws CoderException {
+    void testMakeRequest() throws CoderException {
         Pair<String, SoRequest> pair = oper.makeRequest();
 
         assertEquals("/my-service-instance-id/vnfs/my-vnf-id/vfModules/null", pair.getLeft());
@@ -238,7 +239,7 @@ public class VfModuleDeleteTest extends BasicSoOperation {
     }
 
     @Test
-    public void testDelete() throws Exception {
+    void testDelete() throws Exception {
         SoRequest req = new SoRequest();
         req.setRequestId(REQ_ID);
 
@@ -247,7 +248,7 @@ public class VfModuleDeleteTest extends BasicSoOperation {
         String reqText = oper.prettyPrint(req);
 
         final CompletableFuture<Response> delFuture =
-                        oper.delete("my-uri", headers, MediaType.APPLICATION_JSON, reqText, callback);
+            oper.delete("my-uri", headers, MediaType.APPLICATION_JSON, reqText, callback);
 
         ArgumentCaptor<HttpRequest> reqCaptor = ArgumentCaptor.forClass(HttpRequest.class);
         verify(javaClient).sendAsync(reqCaptor.capture(), any());
@@ -276,7 +277,7 @@ public class VfModuleDeleteTest extends BasicSoOperation {
      */
     @Test
     @SuppressWarnings("unchecked")
-    public void testDeleteException() throws Exception {
+    void testDeleteException() throws Exception {
         Throwable thrown = new IllegalStateException(EXPECTED_EXCEPTION);
 
         // need a new future, with an exception
@@ -289,7 +290,7 @@ public class VfModuleDeleteTest extends BasicSoOperation {
         String reqText = oper.prettyPrint(req);
 
         CompletableFuture<Response> delFuture =
-                        oper.delete("/my-uri", Map.of(), MediaType.APPLICATION_JSON, reqText, callback);
+            oper.delete("/my-uri", Map.of(), MediaType.APPLICATION_JSON, reqText, callback);
 
         assertTrue(delFuture.isCompletedExceptionally());
 
@@ -302,7 +303,7 @@ public class VfModuleDeleteTest extends BasicSoOperation {
      * Tests addAuthHeader() when there is a username, but no password.
      */
     @Test
-    public void testAddAuthHeader() {
+    void testAddAuthHeader() {
         Builder builder = mock(Builder.class);
         lenient().when(client.getUserName()).thenReturn("the-user");
         lenient().when(client.getPassword()).thenReturn("the-password");
@@ -323,7 +324,7 @@ public class VfModuleDeleteTest extends BasicSoOperation {
      * Tests addAuthHeader() when there is no username.
      */
     @Test
-    public void testAddAuthHeaderNoUser() {
+    void testAddAuthHeaderNoUser() {
         Builder builder = mock(Builder.class);
         lenient().when(client.getPassword()).thenReturn("world");
         oper.addAuthHeader(builder);
@@ -339,7 +340,7 @@ public class VfModuleDeleteTest extends BasicSoOperation {
      * Tests addAuthHeader() when there is a username, but no password.
      */
     @Test
-    public void testAddAuthHeaderUserOnly() {
+    void testAddAuthHeaderUserOnly() {
         Builder builder = mock(Builder.class);
         lenient().when(client.getUserName()).thenReturn("my-user");
         oper.addAuthHeader(builder);
@@ -359,18 +360,18 @@ public class VfModuleDeleteTest extends BasicSoOperation {
      * Tests makeRequest() when a property is missing.
      */
     @Test
-    public void testMakeRequestMissingProperty() throws Exception {
+    void testMakeRequestMissingProperty() throws Exception {
         loadProperties();
 
         ServiceInstance instance = new ServiceInstance();
         oper.setProperty(OperationProperties.AAI_SERVICE, instance);
 
         assertThatIllegalArgumentException().isThrownBy(() -> oper.makeRequest())
-                        .withMessageContaining("missing service instance ID");
+            .withMessageContaining("missing service instance ID");
     }
 
     @Test
-    public void testMakeHttpClient() {
+    void testMakeHttpClient() {
         // must use a real operation to invoke this method
         assertNotNull(new MyOperation(params, config).makeHttpClient());
     }
@@ -391,7 +392,7 @@ public class VfModuleDeleteTest extends BasicSoOperation {
 
     private class MyOperation extends VfModuleDelete {
 
-        public MyOperation(ControlLoopOperationParams params, HttpPollingConfig config) {
+        MyOperation(ControlLoopOperationParams params, HttpPollingConfig config) {
             super(params, config);
         }
 
diff --git a/models-interactions/model-actors/actor.test/pom.xml b/models-interactions/model-actors/actor.test/pom.xml
index 4cc73b18f..ff1030ce5 100644
--- a/models-interactions/model-actors/actor.test/pom.xml
+++ b/models-interactions/model-actors/actor.test/pom.xml
@@ -55,11 +55,6 @@
             <scope>provided</scope>
         </dependency>
         <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <scope>provided</scope>
-        </dependency>
-        <dependency>
             <groupId>org.onap.policy.models.policy-models-interactions</groupId>
             <artifactId>simulators</artifactId>
             <version>${project.version}</version>
@@ -74,6 +69,15 @@
             <artifactId>mockito-core</artifactId>
             <scope>compile</scope>
         </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-junit-jupiter</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicActor.java b/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicActor.java
index 8d7291051..cce4da420 100644
--- a/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicActor.java
+++ b/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicActor.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,9 +21,9 @@
 
 package org.onap.policy.controlloop.actor.test;
 
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.FileNotFoundException;
 import java.util.Map;
diff --git a/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicBidirectionalTopicOperation.java b/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicBidirectionalTopicOperation.java
index 22332ae86..3f339d011 100644
--- a/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicBidirectionalTopicOperation.java
+++ b/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicBidirectionalTopicOperation.java
@@ -21,8 +21,8 @@
 
 package org.onap.policy.controlloop.actor.test;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.fail;
 import static org.mockito.Mockito.lenient;
 
 import java.util.List;
diff --git a/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicOperation.java b/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicOperation.java
index b037189b0..48ee9dcfc 100644
--- a/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicOperation.java
+++ b/models-interactions/model-actors/actor.test/src/main/java/org/onap/policy/controlloop/actor/test/BasicOperation.java
@@ -21,7 +21,7 @@
 
 package org.onap.policy.controlloop.actor.test;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import jakarta.ws.rs.core.Response;
 import java.util.Map;
diff --git a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicActorTest.java b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicActorTest.java
index 65ab0bbb3..1cd3827ab 100644
--- a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicActorTest.java
+++ b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicActorTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,12 +25,12 @@ import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
 import java.io.FileNotFoundException;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-public class BasicActorTest extends BasicActor {
+class BasicActorTest extends BasicActor {
 
     @Test
-    public void testVerifyActorService_testStartOtherServices_testStopOtherServices() {
+    void testVerifyActorService_testStartOtherServices_testStopOtherServices() {
         // mostly empty service
         verifyActorService(DummyActor.NAME, "service.yaml");
 
diff --git a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicBidirectionalTopicOperationTest.java b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicBidirectionalTopicOperationTest.java
index ebfc267cc..c795f9cc5 100644
--- a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicBidirectionalTopicOperationTest.java
+++ b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicBidirectionalTopicOperationTest.java
@@ -22,70 +22,72 @@
 package org.onap.policy.controlloop.actor.test;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.verify;
 
 import java.util.function.BiConsumer;
-import org.junit.After;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.ArgumentCaptor;
+import org.mockito.InjectMocks;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.event.comm.TopicSink;
 import org.onap.policy.common.endpoints.event.comm.TopicSource;
 import org.onap.policy.common.utils.coder.StandardCoderObject;
 import org.onap.policy.simulators.TopicServer;
 
-@RunWith(MockitoJUnitRunner.class)
-public class BasicBidirectionalTopicOperationTest {
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class BasicBidirectionalTopicOperationTest {
     private static final String ACTOR = "my-actor";
     private static final String OPERATION = "my-operation";
 
     @Mock
     private BiConsumer<String, StandardCoderObject> listener;
 
-    private BasicBidirectionalTopicOperation<String> oper;
+    private BasicBidirectionalTopicOperation<String> oper = new MyOperation(ACTOR, OPERATION);
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+    void setUpBeforeClass() throws Exception {
         BasicBidirectionalTopicOperation.initBeforeClass(BasicBidirectionalTopicOperation.MY_SINK,
                         BasicBidirectionalTopicOperation.MY_SOURCE);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+    static void tearDownAfterClass() {
         BasicBidirectionalTopicOperation.destroyAfterClass();
     }
 
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() throws Exception {
-        oper = new MyOperation(ACTOR, OPERATION);
+    @BeforeEach
+    void setUp() throws Exception {
         oper.setUpBasic();
     }
 
-    @After
-    public void tearDown() {
+    @AfterEach
+    void tearDown() {
         oper.tearDownBasic();
     }
 
     @Test
-    public void testTopicMgr() {
+    void testTopicMgr() {
         assertNotNull(BasicBidirectionalTopicOperation.topicMgr.getTopicHandler(
                         BasicBidirectionalTopicOperation.MY_SINK, BasicBidirectionalTopicOperation.MY_SOURCE));
     }
 
     @Test
-    public void testBasicBidirectionalTopicOperation() {
+    void testBasicBidirectionalTopicOperation() {
         oper.tearDownBasic();
 
         oper = new MyOperation();
@@ -96,20 +98,14 @@ public class BasicBidirectionalTopicOperationTest {
     }
 
     @Test
-    public void testBasicBidirectionalTopicOperationStringString() {
-        assertEquals(ACTOR, oper.actorName);
-        assertEquals(OPERATION, oper.operationName);
-    }
-
-    @Test
-    public void testSetUp() {
+    void testSetUp() {
         assertNotNull(oper.config);
         assertNotNull(oper.outcome);
         assertNotNull(oper.executor);
     }
 
     @Test
-    public void testInitOperator() {
+    void testInitOperator() {
         oper.initConfig();
 
         assertSame(oper.topicHandler, oper.config.getTopicHandler());
@@ -118,7 +114,7 @@ public class BasicBidirectionalTopicOperationTest {
     }
 
     @Test
-    public void testProvideResponse() {
+    void testProvideResponse() {
         String response = "{\"input\": 10}";
 
         oper.provideResponse(listener, response);
diff --git a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicHttpOperationTest.java b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicHttpOperationTest.java
index 2f16c4226..58392b96e 100644
--- a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicHttpOperationTest.java
+++ b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicHttpOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,48 +21,48 @@
 
 package org.onap.policy.controlloop.actor.test;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.when;
 
 import jakarta.ws.rs.client.InvocationCallback;
 import jakarta.ws.rs.core.Response;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 
-@RunWith(MockitoJUnitRunner.class)
-public class BasicHttpOperationTest {
+@ExtendWith(MockitoExtension.class)
+class BasicHttpOperationTest {
     private static final String ACTOR = "my-actor";
     private static final String OPERATION = "my-operation";
 
     private BasicHttpOperation oper;
 
 
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+    void setUp() throws Exception {
         oper = new BasicHttpOperation(ACTOR, OPERATION);
         oper.setUpBasic();
     }
 
     @Test
-    public void testBasicHttpOperation() {
+    void testBasicHttpOperation() {
         oper = new BasicHttpOperation();
         assertEquals(BasicOperation.DEFAULT_ACTOR, oper.actorName);
         assertEquals(BasicOperation.DEFAULT_OPERATION, oper.operationName);
     }
 
     @Test
-    public void testBasicHttpOperationStringString() {
+    void testBasicHttpOperationStringString() {
         assertEquals(ACTOR, oper.actorName);
         assertEquals(OPERATION, oper.operationName);
     }
 
     @Test
-    public void testSetUp() throws Exception {
+    void testSetUp() throws Exception {
         assertNotNull(oper.client);
         assertSame(oper.client, oper.factory.get(BasicHttpOperation.MY_CLIENT));
         assertEquals(200, oper.rawResponse.getStatus());
@@ -73,7 +73,7 @@ public class BasicHttpOperationTest {
     }
 
     @Test
-    public void testInitOperator() throws Exception {
+    void testInitOperator() throws Exception {
         oper.initConfig();
 
         assertSame(oper.client, oper.config.getClient());
@@ -81,7 +81,7 @@ public class BasicHttpOperationTest {
     }
 
     @Test
-    public void testProvideResponse() throws Exception {
+    void testProvideResponse() throws Exception {
         InvocationCallback<Response> cb = new InvocationCallback<>() {
             @Override
             public void completed(Response response) {
diff --git a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicOperationTest.java b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicOperationTest.java
index 34d0d122d..9ce1b214e 100644
--- a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicOperationTest.java
+++ b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/BasicOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,56 +21,58 @@
 
 package org.onap.policy.controlloop.actor.test;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 import java.util.Map;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.junit.runner.RunWith;
 import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.common.utils.resources.ResourceUtils;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 
-@RunWith(MockitoJUnitRunner.class)
-public class BasicOperationTest {
+@ExtendWith(MockitoExtension.class)
+ class BasicOperationTest {
     private static final String ACTOR = "my-actor";
     private static final String OPERATION = "my-operation";
 
     private BasicOperation oper;
 
 
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+     void setUp() throws Exception {
         oper = new BasicHttpOperation(ACTOR, OPERATION);
         oper.setUpBasic();
     }
 
     @Test
-    public void testBasicHttpOperation() {
+     void testBasicHttpOperation() {
         oper = new BasicHttpOperation();
         assertEquals(BasicHttpOperation.DEFAULT_ACTOR, oper.actorName);
         assertEquals(BasicHttpOperation.DEFAULT_OPERATION, oper.operationName);
     }
 
     @Test
-    public void testBasicHttpOperationStringString() {
+     void testBasicHttpOperationStringString() {
         assertEquals(ACTOR, oper.actorName);
         assertEquals(OPERATION, oper.operationName);
     }
 
     @Test
-    public void testSetUp() throws Exception {
+     void testSetUp() throws Exception {
         assertNotNull(oper.future);
         assertNotNull(oper.outcome);
         assertNotNull(oper.executor);
     }
 
     @Test
-    public void testMakeContext() {
+     void testMakeContext() {
         oper.makeContext();
 
         assertSame(oper.service, oper.params.getActorService());
@@ -81,12 +83,12 @@ public class BasicOperationTest {
     }
 
     @Test
-    public void testMakePayload() {
+     void testMakePayload() {
         assertNull(oper.makePayload());
     }
 
     @Test
-    public void testVerifyRequest() throws CoderException {
+     void testVerifyRequest() throws CoderException {
         Map<String, Object> map = Util.translateToMap("", ResourceUtils.getResourceAsString("actual.json"));
         oper.verifyRequest("expected.json", map, "svc-request-id", "vnf-id");
     }
diff --git a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/DummyActor.java b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/DummyActor.java
index c862a18b7..1590ac314 100644
--- a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/DummyActor.java
+++ b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/DummyActor.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,9 +24,9 @@ package org.onap.policy.controlloop.actor.test;
 import org.onap.policy.controlloop.actorserviceprovider.impl.ActorImpl;
 
 public class DummyActor extends ActorImpl {
-    public static final String NAME = "MyActor";
-    public static final String MY_OPERATION1 = "MyOperationA";
-    public static final String MY_OPERATION2 = "MyOperationB";
+    static final String NAME = "MyActor";
+    static final String MY_OPERATION1 = "MyOperationA";
+    static final String MY_OPERATION2 = "MyOperationB";
 
     /**
      * Constructs the object.
diff --git a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/DummyOperator.java b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/DummyOperator.java
index efd3b6500..6cb43627c 100644
--- a/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/DummyOperator.java
+++ b/models-interactions/model-actors/actor.test/src/test/java/org/onap/policy/controlloop/actor/test/DummyOperator.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,7 +25,7 @@ import org.onap.policy.controlloop.actorserviceprovider.Operation;
 import org.onap.policy.controlloop.actorserviceprovider.impl.OperatorPartial;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
 
-public class DummyOperator extends OperatorPartial {
+class DummyOperator extends OperatorPartial {
 
     public DummyOperator(String actorName, String name) {
         super(actorName, name);
diff --git a/models-interactions/model-actors/actor.vfc/pom.xml b/models-interactions/model-actors/actor.vfc/pom.xml
index 84eb7c553..1644aab47 100644
--- a/models-interactions/model-actors/actor.vfc/pom.xml
+++ b/models-interactions/model-actors/actor.vfc/pom.xml
@@ -85,10 +85,5 @@
             <version>${project.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.mockito</groupId>
-            <artifactId>mockito-core</artifactId>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 </project>
diff --git a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/BasicVfcOperation.java b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/BasicVfcOperation.java
index d83fd8ba8..945acabd6 100644
--- a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/BasicVfcOperation.java
+++ b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/BasicVfcOperation.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,10 +32,10 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingCo
 import org.onap.policy.simulators.Util;
 import org.onap.policy.vfc.VfcResponse;
 
-public abstract class BasicVfcOperation extends BasicHttpOperation {
-    public static final String POLL_PATH = "my-path-get/";
-    public static final int MAX_POLLS = 3;
-    public static final int POLL_WAIT_SEC = 20;
+abstract class BasicVfcOperation extends BasicHttpOperation {
+    static final String POLL_PATH = "my-path-get/";
+    static final int MAX_POLLS = 3;
+    static final int POLL_WAIT_SEC = 20;
 
     @Mock
     protected HttpPollingConfig config;
@@ -45,7 +45,7 @@ public abstract class BasicVfcOperation extends BasicHttpOperation {
     /**
      * Constructs the object using a default actor and operation name.
      */
-    public BasicVfcOperation() {
+    BasicVfcOperation() {
         super();
     }
 
@@ -55,7 +55,7 @@ public abstract class BasicVfcOperation extends BasicHttpOperation {
      * @param actor actor name
      * @param operation operation name
      */
-    public BasicVfcOperation(String actor, String operation) {
+    BasicVfcOperation(String actor, String operation) {
         super(actor, operation);
     }
 
@@ -66,7 +66,7 @@ public abstract class BasicVfcOperation extends BasicHttpOperation {
         Util.buildVfcSim();
 
         BusTopicParams clientParams = BusTopicParams.builder().clientName(MY_CLIENT).basePath("api/nslcm/v1/")
-                        .hostname("localhost").managed(true).port(Util.VFCSIM_SERVER_PORT).build();
+            .hostname("localhost").managed(true).port(Util.VFCSIM_SERVER_PORT).build();
         HttpClientFactoryInstance.getClientFactory().build(clientParams);
     }
 
@@ -78,7 +78,7 @@ public abstract class BasicVfcOperation extends BasicHttpOperation {
     /**
      * Initializes mocks and sets up.
      */
-    public void setUp() throws Exception {
+    void setUp() throws Exception {
         super.setUpBasic();
 
         response = new VfcResponse();
diff --git a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/RestartTest.java b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/RestartTest.java
index ca7cefd93..4474693cc 100644
--- a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/RestartTest.java
+++ b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/RestartTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,19 +22,19 @@
 package org.onap.policy.controlloop.actor.vfc;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.List;
 import java.util.concurrent.CompletableFuture;
 import org.apache.commons.lang3.tuple.Pair;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
 import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
@@ -44,8 +44,8 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingPa
 import org.onap.policy.vfc.VfcRequest;
 import org.onap.policy.vfc.VfcResponse;
 
-@RunWith(MockitoJUnitRunner.class)
-public class RestartTest extends BasicVfcOperation {
+@ExtendWith(MockitoExtension.class)
+ class RestartTest extends BasicVfcOperation {
     private static final String TEST_SERVICE_INSTANCE_ID = "test-service-instance-id";
     private static final String TEST_VSERVER_ID = "test-vserver-id";
     private static final String TEST_VSERVER_NAME = "test-vserver-name";
@@ -54,21 +54,21 @@ public class RestartTest extends BasicVfcOperation {
     private Restart restartOper;
 
 
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         initBeforeClass();
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         destroyAfterClass();
     }
 
     /**
      * setup restart operation.
      */
-    @Before
-    public void setup() throws Exception {
+    @BeforeEach
+     void setup() throws Exception {
         super.setUp();
 
         restartOper = new Restart(params, config);
@@ -80,7 +80,7 @@ public class RestartTest extends BasicVfcOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         HttpPollingParams opParams = HttpPollingParams.builder().clientName(MY_CLIENT).path("ns").pollPath("jobs")
                         .maxPolls(1).build();
         config = new HttpPollingConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
@@ -98,14 +98,14 @@ public class RestartTest extends BasicVfcOperation {
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         CompletableFuture<OperationOutcome> futureRes = restartOper.startOperationAsync(1, outcome);
         assertNotNull(futureRes);
         assertEquals(0, restartOper.getPollCount());
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         // @formatter:off
         assertThat(restartOper.getPropertyNames()).isEqualTo(
                         List.of(
@@ -117,7 +117,7 @@ public class RestartTest extends BasicVfcOperation {
     }
 
     @Test
-    public void testMakeRequest() {
+     void testMakeRequest() {
         Pair<String, VfcRequest> resultPair = restartOper.makeRequest();
         assertNotNull(resultPair.getLeft());
         assertNotNull(resultPair.getRight());
diff --git a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcActorTest.java b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcActorTest.java
index 08ce8e194..88176a283 100644
--- a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcActorTest.java
+++ b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcActorTest.java
@@ -4,7 +4,7 @@
  * ================================================================================
  * Copyright (C) 2018 Ericsson. All rights reserved.
  * Modifications Copyright (C) 2018-2019 AT&T Corp. All rights reserved.
- * Modifications Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,17 +22,17 @@
 
 package org.onap.policy.controlloop.actor.vfc;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Arrays;
 import java.util.stream.Collectors;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actor.test.BasicActor;
 
-public class VfcActorTest extends BasicActor {
+class VfcActorTest extends BasicActor {
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         VfcActor prov = new VfcActor();
         assertEquals(0, prov.getSequenceNumber());
 
@@ -44,7 +44,7 @@ public class VfcActorTest extends BasicActor {
     }
 
     @Test
-    public void testActorService() {
+     void testActorService() {
         // verify that it all plugs into the ActorService
         verifyActorService(VfcActor.NAME, "service.yaml");
     }
diff --git a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcOperationTest.java b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcOperationTest.java
index aee9b323e..920e79984 100644
--- a/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcOperationTest.java
+++ b/models-interactions/model-actors/actor.vfc/src/test/java/org/onap/policy/controlloop/actor/vfc/VfcOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,31 +21,31 @@
 
 package org.onap.policy.controlloop.actor.vfc;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mockito;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.vfc.VfcResponse;
 import org.onap.policy.vfc.VfcResponseDescriptor;
 
-@RunWith(MockitoJUnitRunner.class)
-public class VfcOperationTest extends BasicVfcOperation {
+@ExtendWith(MockitoExtension.class)
+ class VfcOperationTest extends BasicVfcOperation {
 
     private VfcOperation oper;
 
     /**
      * setUp.
      */
-    @Before
+    @BeforeEach
     @Override
-    public void setUp() throws Exception {
+     void setUp() throws Exception {
         super.setUp();
 
         initConfig();
@@ -54,7 +54,7 @@ public class VfcOperationTest extends BasicVfcOperation {
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(DEFAULT_OPERATION, oper.getName());
         assertSame(config, oper.getConfig());
@@ -62,13 +62,13 @@ public class VfcOperationTest extends BasicVfcOperation {
     }
 
     @Test
-    public void testResetPollCount() {
+     void testResetPollCount() {
         oper.resetPollCount();
         assertEquals(0, oper.getPollCount());
     }
 
     @Test
-    public void testGetRequestState() {
+     void testGetRequestState() {
         VfcResponse mockResponse = Mockito.mock(VfcResponse.class);
         Mockito.when(mockResponse.getResponseDescriptor()).thenReturn(null);
         assertNull(oper.getRequestState(mockResponse));
@@ -82,7 +82,7 @@ public class VfcOperationTest extends BasicVfcOperation {
     }
 
     @Test
-    public void testIsSuccess() {
+     void testIsSuccess() {
         assertTrue(oper.isSuccess(rawResponse, response));
     }
 }
diff --git a/models-interactions/model-actors/actor.xacml/pom.xml b/models-interactions/model-actors/actor.xacml/pom.xml
index 1b95fbcab..27d5627ad 100644
--- a/models-interactions/model-actors/actor.xacml/pom.xml
+++ b/models-interactions/model-actors/actor.xacml/pom.xml
@@ -70,10 +70,5 @@
             <version>${project.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.mockito</groupId>
-            <artifactId>mockito-core</artifactId>
-            <scope>compile</scope>
-        </dependency>
     </dependencies>
 </project>
diff --git a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/ConfigureOperationTest.java b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/ConfigureOperationTest.java
index 9559a1d47..3dba20162 100644
--- a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/ConfigureOperationTest.java
+++ b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/ConfigureOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,21 +22,21 @@
 package org.onap.policy.controlloop.actor.xacml;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.mockito.Mockito.lenient;
 import static org.mockito.Mockito.mock;
 
 import java.util.Map;
 import java.util.function.Consumer;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.common.endpoints.http.server.HttpServletServerFactoryInstance;
@@ -46,8 +46,8 @@ import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
 import org.onap.policy.models.decisions.concepts.DecisionRequest;
 import org.onap.policy.models.decisions.concepts.DecisionResponse;
 
-@RunWith(MockitoJUnitRunner.class)
-public class ConfigureOperationTest extends BasicHttpOperation {
+@ExtendWith(MockitoExtension.class)
+ class ConfigureOperationTest extends BasicHttpOperation {
 
     @Mock
     private Consumer<OperationOutcome> started;
@@ -60,8 +60,8 @@ public class ConfigureOperationTest extends BasicHttpOperation {
     /**
      * Starts the simulator.
      */
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         org.onap.policy.simulators.Util.buildXacmlSim();
 
         BusTopicParams clientParams = BusTopicParams.builder().clientName(MY_CLIENT).basePath("policy/pdpx/v1/")
@@ -70,8 +70,8 @@ public class ConfigureOperationTest extends BasicHttpOperation {
         HttpClientFactoryInstance.getClientFactory().build(clientParams);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         HttpClientFactoryInstance.getClientFactory().destroy();
         HttpServletServerFactoryInstance.getServerFactory().destroy();
     }
@@ -79,8 +79,8 @@ public class ConfigureOperationTest extends BasicHttpOperation {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         super.setUpBasic();
 
         operConfig = mock(DecisionConfig.class);
@@ -102,7 +102,7 @@ public class ConfigureOperationTest extends BasicHttpOperation {
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(DEFAULT_OPERATION, oper.getName());
     }
@@ -111,7 +111,7 @@ public class ConfigureOperationTest extends BasicHttpOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         DecisionParams opParams =
                         DecisionParams.builder().clientName(MY_CLIENT).path("decision").action("configure").build();
         config = new DecisionConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
@@ -124,7 +124,7 @@ public class ConfigureOperationTest extends BasicHttpOperation {
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
 
         DecisionResponse response = outcome.getResponse();
-        assertTrue(response instanceof DecisionResponse);
+        assertInstanceOf(DecisionResponse.class, response);
         assertNotNull(response.getPolicies());
         assertThat(response.getPolicies()).containsKey("test-policy");
     }
@@ -133,7 +133,7 @@ public class ConfigureOperationTest extends BasicHttpOperation {
      * Tests "failure" case with simulator.
      */
     @Test
-    public void testFailure() throws Exception {
+     void testFailure() throws Exception {
         DecisionParams opParams =
                         DecisionParams.builder().clientName(MY_CLIENT).path("decision").action("configure").build();
         config = new DecisionConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
@@ -146,7 +146,7 @@ public class ConfigureOperationTest extends BasicHttpOperation {
         assertEquals(OperationResult.FAILURE, outcome.getResult());
 
         DecisionResponse response = outcome.getResponse();
-        assertTrue(response instanceof DecisionResponse);
+        assertInstanceOf(DecisionResponse.class, response);
         assertNotNull(response.getPolicies());
         assertThat(response.getPolicies()).isEmpty();
     }
diff --git a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionConfigTest.java b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionConfigTest.java
index dbb4f6857..526840d46 100644
--- a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionConfigTest.java
+++ b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionConfigTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,24 +21,24 @@
 
 package org.onap.policy.controlloop.actor.xacml;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.when;
 
 import java.util.concurrent.Executor;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClient;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactory;
 import org.onap.policy.models.decisions.concepts.DecisionRequest;
 
-@RunWith(MockitoJUnitRunner.class)
-public class DecisionConfigTest {
+@ExtendWith(MockitoExtension.class)
+ class DecisionConfigTest {
     private static final String MY_CLIENT = "my-client";
     private static final String PATH = "my-path";
     private static final int TIMEOUT = 10;
@@ -59,8 +60,8 @@ public class DecisionConfigTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         when(factory.get(MY_CLIENT)).thenReturn(client);
 
         params = DecisionParams.builder().onapName(ONAP_NAME).onapComponent(ONAP_COMP).onapInstance(ONAP_INST)
@@ -69,7 +70,7 @@ public class DecisionConfigTest {
     }
 
     @Test
-    public void test() {
+     void test() {
         DecisionRequest expected = new DecisionRequest();
         expected.setOnapComponent(ONAP_COMP);
         expected.setOnapInstance(ONAP_INST);
diff --git a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionOperationTest.java b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionOperationTest.java
index 49dbd166f..ee9d28c57 100644
--- a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionOperationTest.java
+++ b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,11 +22,12 @@
 package org.onap.policy.controlloop.actor.xacml;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
@@ -37,13 +38,14 @@ import java.util.List;
 import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 import java.util.function.Consumer;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.common.endpoints.http.server.HttpServletServerFactoryInstance;
@@ -57,8 +59,8 @@ import org.onap.policy.models.decisions.concepts.DecisionRequest;
 import org.onap.policy.models.decisions.concepts.DecisionResponse;
 import org.onap.policy.simulators.XacmlSimulatorJaxRs;
 
-@RunWith(MockitoJUnitRunner.class)
-public class DecisionOperationTest extends BasicHttpOperation {
+@ExtendWith(MockitoExtension.class)
+ class DecisionOperationTest extends BasicHttpOperation {
     private static final List<String> PROPERTY_NAMES = List.of("prop-A", "prop-B");
 
     @Mock
@@ -72,8 +74,8 @@ public class DecisionOperationTest extends BasicHttpOperation {
     /**
      * Starts the simulator.
      */
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         org.onap.policy.simulators.Util.buildXacmlSim();
 
         BusTopicParams clientParams = BusTopicParams.builder().clientName(MY_CLIENT).basePath("policy/pdpx/v1/")
@@ -82,8 +84,8 @@ public class DecisionOperationTest extends BasicHttpOperation {
         HttpClientFactoryInstance.getClientFactory().build(clientParams);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         HttpClientFactoryInstance.getClientFactory().destroy();
         HttpServletServerFactoryInstance.getServerFactory().destroy();
     }
@@ -91,12 +93,12 @@ public class DecisionOperationTest extends BasicHttpOperation {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+     void setUp() throws Exception {
         super.setUpBasic();
 
         guardConfig = mock(DecisionConfig.class);
-        when(guardConfig.makeRequest()).thenAnswer(args -> {
+        Mockito.lenient().when(guardConfig.makeRequest()).thenAnswer(args -> {
             DecisionRequest req = new DecisionRequest();
             req.setAction("guard");
             req.setOnapComponent("my-onap-component");
@@ -117,7 +119,7 @@ public class DecisionOperationTest extends BasicHttpOperation {
      * Tests with simulator.
      */
     @Test
-    public void testSimulator() throws Exception {
+     void testSimulator() throws Exception {
         DecisionParams opParams = DecisionParams.builder().clientName(MY_CLIENT).path("decision").build();
         config = new DecisionConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
 
@@ -127,22 +129,22 @@ public class DecisionOperationTest extends BasicHttpOperation {
 
         outcome = oper.start().get();
         assertEquals(OperationResult.FAILURE, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof DecisionResponse);
+        assertInstanceOf(DecisionResponse.class, outcome.getResponse());
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(DEFAULT_OPERATION, oper.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         assertThat(oper.getPropertyNames()).isEqualTo(PROPERTY_NAMES);
     }
 
     @Test
-    public void testStartOperationAsync() throws Exception {
+     void testStartOperationAsync() throws Exception {
         CompletableFuture<OperationOutcome> future2 = oper.start();
         executor.runAll(100);
         assertFalse(future2.isDone());
@@ -169,7 +171,7 @@ public class DecisionOperationTest extends BasicHttpOperation {
      * Tests startOperationAsync() when the guard is disabled.
      */
     @Test
-    public void testStartOperationAsyncDisabled() throws Exception {
+     void testStartOperationAsyncDisabled() throws Exception {
         // indicate that it's disabled
         when(guardConfig.isDisabled()).thenReturn(true);
 
@@ -192,7 +194,7 @@ public class DecisionOperationTest extends BasicHttpOperation {
 
     private class MyOper extends DecisionOperation {
 
-        public MyOper(ControlLoopOperationParams params, HttpConfig config) {
+        MyOper(ControlLoopOperationParams params, HttpConfig config) {
             super(params, config, PROPERTY_NAMES);
         }
 
diff --git a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionOperatorTest.java b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionOperatorTest.java
index ab8535ae4..31308f7f9 100644
--- a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionOperatorTest.java
+++ b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionOperatorTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,23 +22,24 @@
 package org.onap.policy.controlloop.actor.xacml;
 
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
 import static org.mockito.Mockito.when;
 
 import java.util.Map;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClient;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactory;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ParameterValidationRuntimeException;
 
-@RunWith(MockitoJUnitRunner.class)
-public class DecisionOperatorTest {
+@ExtendWith(MockitoExtension.class)
+ class DecisionOperatorTest {
     private static final String ACTOR = "my-actor";
     private static final String OPERATION = "my-name";
     private static final String CLIENT = "my-client";
@@ -54,15 +56,15 @@ public class DecisionOperatorTest {
     @Mock
     private HttpClientFactory factory;
 
-
+    @InjectMocks
     private DecisionOperator oper;
 
     /**
      * Initializes fields, including {@link #oper}, and resets the static fields used by
      * the REST server.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         when(factory.get(CLIENT)).thenReturn(client);
 
         oper = new MyOperator();
@@ -73,19 +75,19 @@ public class DecisionOperatorTest {
         Map<String, Object> paramMap = Util.translateToMap(OPERATION, params);
         oper.configure(paramMap);
 
-        assertTrue(oper.makeConfiguration(paramMap) instanceof DecisionConfig);
+        assertInstanceOf(DecisionConfig.class, oper.makeConfiguration(paramMap));
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(ACTOR, oper.getActorName());
         assertEquals(OPERATION, oper.getName());
         assertEquals(ACTOR + "." + OPERATION, oper.getFullName());
     }
 
     @Test
-    public void testDoConfigure_testGetters() {
-        assertTrue(oper.getCurrentConfig() instanceof DecisionConfig);
+     void testDoConfigure_testGetters() {
+        assertInstanceOf(DecisionConfig.class, oper.getCurrentConfig());
 
         // test invalid parameters
         Map<String, Object> paramMap2 = Util.translateToMap(OPERATION, DecisionParams.builder().build());
@@ -94,7 +96,7 @@ public class DecisionOperatorTest {
 
 
     private class MyOperator extends DecisionOperator {
-        public MyOperator() {
+        MyOperator() {
             super(ACTOR, OPERATION, null);
         }
 
diff --git a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionParamsTest.java b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionParamsTest.java
index 658ae4f2e..141e86f08 100644
--- a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionParamsTest.java
+++ b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/DecisionParamsTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,18 +22,18 @@
 package org.onap.policy.controlloop.actor.xacml;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.function.Function;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.controlloop.actor.xacml.DecisionParams.DecisionParamsBuilder;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams.HttpParamsBuilder;
 
-public class DecisionParamsTest {
+class DecisionParamsTest {
     private static final String CONTAINER = "my-container";
     private static final String CLIENT = "my-client";
     private static final String PATH = "my-path";
@@ -44,20 +45,20 @@ public class DecisionParamsTest {
 
     private DecisionParams params;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         params = DecisionParams.builder().onapName(ONAP_NAME).onapComponent(ONAP_COMP).onapInstance(ONAP_INST)
                         .action(MY_ACTION).clientName(CLIENT).path(PATH).timeoutSec(TIMEOUT).build();
     }
 
     @Test
-    public void testIsDisabled() {
+     void testIsDisabled() {
         // disabled by default
         assertFalse(params.isDisabled());
     }
 
     @Test
-    public void testValidate() {
+     void testValidate() {
         assertTrue(params.validate(CONTAINER).isValid());
 
         testValidateField("onapName", "null", bldr -> bldr.onapName(null));
@@ -70,7 +71,7 @@ public class DecisionParamsTest {
     }
 
     @Test
-    public void testBuilder_testToBuilder() {
+     void testBuilder_testToBuilder() {
         assertEquals(CLIENT, params.getClientName());
 
         assertEquals(ONAP_NAME, params.getOnapName());
@@ -86,11 +87,11 @@ public class DecisionParamsTest {
 
         // original params should be valid
         ValidationResult result = params.validate(CONTAINER);
-        assertTrue(fieldName, result.isValid());
+        assertTrue(result.isValid(), fieldName);
 
         // make invalid params
         result = makeInvalid.apply(params.toBuilder()).build().validate(CONTAINER);
-        assertFalse(fieldName, result.isValid());
+        assertFalse(result.isValid(), fieldName);
         assertThat(result.getResult()).contains(fieldName).contains(expected);
     }
 }
diff --git a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/GuardOperationTest.java b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/GuardOperationTest.java
index 05f64baa7..a4187b523 100644
--- a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/GuardOperationTest.java
+++ b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/GuardOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,23 +23,24 @@ package org.onap.policy.controlloop.actor.xacml;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
 import java.util.Map;
 import java.util.TreeMap;
 import java.util.function.Consumer;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
 import org.onap.policy.common.endpoints.http.server.HttpServletServerFactoryInstance;
@@ -51,8 +52,8 @@ import org.onap.policy.models.decisions.concepts.DecisionRequest;
 import org.onap.policy.models.decisions.concepts.DecisionResponse;
 import org.onap.policy.simulators.XacmlSimulatorJaxRs;
 
-@RunWith(MockitoJUnitRunner.class)
-public class GuardOperationTest extends BasicHttpOperation {
+@ExtendWith(MockitoExtension.class)
+ class GuardOperationTest extends BasicHttpOperation {
 
     @Mock
     private Consumer<OperationOutcome> started;
@@ -65,8 +66,8 @@ public class GuardOperationTest extends BasicHttpOperation {
     /**
      * Starts the simulator.
      */
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+     static void setUpBeforeClass() throws Exception {
         org.onap.policy.simulators.Util.buildXacmlSim();
 
         BusTopicParams clientParams = BusTopicParams.builder().clientName(MY_CLIENT).basePath("policy/pdpx/v1/")
@@ -75,8 +76,8 @@ public class GuardOperationTest extends BasicHttpOperation {
         HttpClientFactoryInstance.getClientFactory().build(clientParams);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+     static void tearDownAfterClass() {
         HttpClientFactoryInstance.getClientFactory().destroy();
         HttpServletServerFactoryInstance.getServerFactory().destroy();
     }
@@ -84,12 +85,12 @@ public class GuardOperationTest extends BasicHttpOperation {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() throws Exception {
+    @BeforeEach
+     void setUp() throws Exception {
         super.setUpBasic();
 
         guardConfig = mock(DecisionConfig.class);
-        when(guardConfig.makeRequest()).thenAnswer(args -> {
+        Mockito.lenient().when(guardConfig.makeRequest()).thenAnswer(args -> {
             DecisionRequest req = new DecisionRequest();
             req.setAction("guard");
             req.setOnapComponent("my-onap-component");
@@ -110,7 +111,7 @@ public class GuardOperationTest extends BasicHttpOperation {
      * Tests "success" case with simulator.
      */
     @Test
-    public void testSuccess() throws Exception {
+     void testSuccess() throws Exception {
         DecisionParams opParams =
                         DecisionParams.builder().clientName(MY_CLIENT).path("decision").action("guard").build();
         config = new DecisionConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
@@ -120,14 +121,14 @@ public class GuardOperationTest extends BasicHttpOperation {
 
         outcome = oper.start().get();
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof DecisionResponse);
+        assertInstanceOf(DecisionResponse.class, outcome.getResponse());
     }
 
     /**
      * Tests "failure" case with simulator.
      */
     @Test
-    public void testFailure() throws Exception {
+     void testFailure() throws Exception {
         DecisionParams opParams =
                         DecisionParams.builder().clientName(MY_CLIENT).path("decision").action("guard").build();
         config = new DecisionConfig(blockingExecutor, opParams, HttpClientFactoryInstance.getClientFactory());
@@ -138,22 +139,22 @@ public class GuardOperationTest extends BasicHttpOperation {
 
         outcome = oper.start().get();
         assertEquals(OperationResult.FAILURE, outcome.getResult());
-        assertTrue(outcome.getResponse() instanceof DecisionResponse);
+        assertInstanceOf(DecisionResponse.class, outcome.getResponse());
     }
 
     @Test
-    public void testConstructor() {
+     void testConstructor() {
         assertEquals(DEFAULT_ACTOR, oper.getActorName());
         assertEquals(DEFAULT_OPERATION, oper.getName());
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         assertThat(oper.getPropertyNames()).isEmpty();
     }
 
     @Test
-    public void testMakeRequest() throws CoderException {
+     void testMakeRequest() throws CoderException {
         oper.generateSubRequestId(2);
 
         verifyPayload("makeReqStd.json", makePayload());
@@ -182,7 +183,7 @@ public class GuardOperationTest extends BasicHttpOperation {
     }
 
     @Test
-    public void testPostProcessResponse() {
+     void testPostProcessResponse() {
         DecisionResponse response = new DecisionResponse();
 
         // null status
diff --git a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/XacmlActorParamsTest.java b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/XacmlActorParamsTest.java
index 4a08871d8..26549e8db 100644
--- a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/XacmlActorParamsTest.java
+++ b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/XacmlActorParamsTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,20 +22,20 @@
 package org.onap.policy.controlloop.actor.xacml;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Map;
 import java.util.TreeMap;
 import java.util.function.Consumer;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ActorParams;
 
-public class XacmlActorParamsTest {
+class XacmlActorParamsTest {
     private static final String CONTAINER = "my-container";
     private static final String CLIENT = "my-client";
     private static final int TIMEOUT = 10;
@@ -55,8 +56,8 @@ public class XacmlActorParamsTest {
      * Initializes {@link #operations} with two items and {@link params} with a fully
      * populated object.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         operations = new TreeMap<>();
         operations.put(PATH1, Map.of("path", URI1));
         operations.put(PATH2, Map.of("path", URI2));
@@ -65,13 +66,13 @@ public class XacmlActorParamsTest {
     }
 
     @Test
-    public void testIsDisabled() {
+     void testIsDisabled() {
         // disabled by default
         assertFalse(params.isDisabled());
     }
 
     @Test
-    public void testValidate() {
+     void testValidate() {
         assertTrue(params.validate(CONTAINER).isValid());
 
         // only a few fields are required
@@ -90,13 +91,13 @@ public class XacmlActorParamsTest {
 
         // original params should be valid
         ValidationResult result = params.validate(CONTAINER);
-        assertTrue(fieldName, result.isValid());
+        assertTrue(result.isValid(), fieldName);
 
         // make invalid params
         XacmlActorParams params2 = makeXacmlActorParams();
         makeInvalid.accept(params2);
         result = params2.validate(CONTAINER);
-        assertFalse(fieldName, result.isValid());
+        assertFalse(result.isValid(), fieldName);
         assertThat(result.getResult()).contains(CONTAINER).contains(fieldName).contains(expected);
     }
 
diff --git a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/XacmlActorTest.java b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/XacmlActorTest.java
index 5c32f92bc..3f0e52860 100644
--- a/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/XacmlActorTest.java
+++ b/models-interactions/model-actors/actor.xacml/src/test/java/org/onap/policy/controlloop/actor/xacml/XacmlActorTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,18 +21,19 @@
 
 package org.onap.policy.controlloop.actor.xacml;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Arrays;
 import java.util.stream.Collectors;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actor.test.BasicActor;
 
-public class XacmlActorTest extends BasicActor {
+class XacmlActorTest extends BasicActor {
 
     @Test
-    public void test() {
+     void test() {
         final XacmlActor prov = new XacmlActor();
 
         // verify that it has the operators we expect
@@ -44,7 +46,7 @@ public class XacmlActorTest extends BasicActor {
         // verify that it all plugs into the ActorService
         verifyActorService(XacmlActor.NAME, "service.yaml");
 
-        assertTrue(prov.getOperator(GuardOperation.NAME) instanceof DecisionOperator);
-        assertTrue(prov.getOperator(ConfigureOperation.NAME) instanceof DecisionOperator);
+        assertInstanceOf(DecisionOperator.class, prov.getOperator(GuardOperation.NAME));
+        assertInstanceOf(DecisionOperator.class, prov.getOperator(ConfigureOperation.NAME));
     }
 }
diff --git a/models-interactions/model-actors/actorServiceProvider/pom.xml b/models-interactions/model-actors/actorServiceProvider/pom.xml
index efebac6fe..cb5a38167 100644
--- a/models-interactions/model-actors/actorServiceProvider/pom.xml
+++ b/models-interactions/model-actors/actorServiceProvider/pom.xml
@@ -60,5 +60,10 @@
             <artifactId>mockito-core</artifactId>
             <scope>compile</scope>
         </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-junit-jupiter</artifactId>
+            <scope>compile</scope>
+        </dependency>
     </dependencies>
 </project>
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/ActorServiceTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/ActorServiceTest.java
index 97f6bbacf..e59c2fd89 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/ActorServiceTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/ActorServiceTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,11 +22,11 @@
 package org.onap.policy.controlloop.actorserviceprovider;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.never;
@@ -42,8 +43,8 @@ import java.util.Map;
 import java.util.TreeMap;
 import java.util.function.Consumer;
 import java.util.stream.Collectors;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ObjectValidationResult;
 import org.onap.policy.common.parameters.ValidationStatus;
 import org.onap.policy.controlloop.actorserviceprovider.impl.ActorImpl;
@@ -51,32 +52,32 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.ActorParams;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ParameterValidationRuntimeException;
 import org.onap.policy.controlloop.actorserviceprovider.spi.Actor;
 
-public class ActorServiceTest {
-    private static final String EXPECTED_EXCEPTION = "expected exception";
-    private static final String ACTOR1 = "actor A";
-    private static final String ACTOR2 = "actor B";
-    private static final String ACTOR3 = "actor C";
-    private static final String ACTOR4 = "actor D";
+class ActorServiceTest {
+    static final String EXPECTED_EXCEPTION = "expected exception";
+    static final String ACTOR1 = "actor A";
+    static final String ACTOR2 = "actor B";
+    static final String ACTOR3 = "actor C";
+    static final String ACTOR4 = "actor D";
 
-    private Actor actor1;
-    private Actor actor2;
-    private Actor actor3;
-    private Actor actor4;
+    Actor actor1;
+    Actor actor2;
+    Actor actor3;
+    Actor actor4;
 
-    private Map<String, Object> sub1;
-    private Map<String, Object> sub2;
-    private Map<String, Object> sub3;
-    private Map<String, Object> sub4;
-    private Map<String, Object> params;
+    Map<String, Object> sub1;
+    Map<String, Object> sub2;
+    Map<String, Object> sub3;
+    Map<String, Object> sub4;
+    Map<String, Object> params;
 
-    private ActorService service;
+    ActorService service;
 
 
     /**
      * Initializes the fields, including a fully populated {@link #service}.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         actor1 = spy(new ActorImpl(ACTOR1));
         actor2 = spy(new ActorImpl(ACTOR2));
         actor3 = spy(new ActorImpl(ACTOR3));
@@ -93,7 +94,7 @@ public class ActorServiceTest {
     }
 
     @Test
-    public void testActorService_testBuildList() {
+    void testActorService_testBuildList() {
         /*
          * make a service where actors two and four have names that are duplicates of the
          * others
@@ -122,7 +123,7 @@ public class ActorServiceTest {
     }
 
     @Test
-    public void testDoStart() {
+    void testDoStart() {
         service.configure(params);
 
         setUpOp("testDoStart", actor -> when(actor.isConfigured()).thenReturn(false), Actor::start);
@@ -148,7 +149,7 @@ public class ActorServiceTest {
     }
 
     @Test
-    public void testDoStop() {
+    void testDoStop() {
         service.configure(params);
         service.start();
 
@@ -175,7 +176,7 @@ public class ActorServiceTest {
     }
 
     @Test
-    public void testDoShutdown() {
+    void testDoShutdown() {
         service.configure(params);
         service.start();
 
@@ -211,7 +212,7 @@ public class ActorServiceTest {
      */
     private void setUpOp(String testName, Consumer<Actor> oper2, Consumer<Actor> oper3) {
         Collection<Actor> actors = service.getActors();
-        assertEquals(testName, 4, actors.size());
+        assertEquals(4, actors.size(), testName);
 
         Iterator<Actor> iter = actors.iterator();
 
@@ -229,7 +230,7 @@ public class ActorServiceTest {
     }
 
     @Test
-    public void testGetActor() {
+    void testGetActor() {
         assertSame(actor1, service.getActor(ACTOR1));
         assertSame(actor3, service.getActor(ACTOR3));
 
@@ -237,7 +238,7 @@ public class ActorServiceTest {
     }
 
     @Test
-    public void testGetActors() {
+    void testGetActors() {
         // @formatter:off
         assertEquals("[actor A, actor B, actor C, actor D]",
                         service.getActors().stream()
@@ -249,7 +250,7 @@ public class ActorServiceTest {
     }
 
     @Test
-    public void testGetActorNames() {
+    void testGetActorNames() {
         // @formatter:off
         assertEquals("[actor A, actor B, actor C, actor D]",
                         service.getActorNames().stream()
@@ -260,7 +261,7 @@ public class ActorServiceTest {
     }
 
     @Test
-    public void testDoConfigure() {
+    void testDoConfigure() {
         service.configure(params);
         assertTrue(service.isConfigured());
 
@@ -279,7 +280,7 @@ public class ActorServiceTest {
      * Tests doConfigure() where actors throw parameter validation and runtime exceptions.
      */
     @Test
-    public void testDoConfigureExceptions() {
+    void testDoConfigureExceptions() {
         makeValidException(actor1);
         makeRuntimeException(actor2);
         makeValidException(actor3);
@@ -297,7 +298,7 @@ public class ActorServiceTest {
      * </ul>
      */
     @Test
-    public void testDoConfigureConfigure() {
+    void testDoConfigureConfigure() {
         // need mutable parameters
         params = new TreeMap<>(params);
 
@@ -365,7 +366,7 @@ public class ActorServiceTest {
     }
 
     @Test
-    public void testLoadActors() {
+    void testLoadActors() {
         ActorService service = new ActorService();
         assertFalse(service.getActors().isEmpty());
         assertNotNull(service.getActor(DummyActor.class.getSimpleName()));
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/CallbackManagerTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/CallbackManagerTest.java
index 44606cb14..722be718c 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/CallbackManagerTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/CallbackManagerTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,27 +21,27 @@
 
 package org.onap.policy.controlloop.actorserviceprovider;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.time.Instant;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-public class CallbackManagerTest {
+class CallbackManagerTest {
 
     private CallbackManager mgr;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         mgr = new CallbackManager();
     }
 
     @Test
-    public void testCanStart_testGetStartTime() {
+    void testCanStart_testGetStartTime() {
         // null until canXxx() is called
         assertNull(mgr.getStartTime());
 
@@ -58,7 +59,7 @@ public class CallbackManagerTest {
     }
 
     @Test
-    public void testCanEnd_testGetEndTime() {
+    void testCanEnd_testGetEndTime() {
         // null until canXxx() is called
         assertNull(mgr.getEndTime());
         assertNull(mgr.getEndTime());
@@ -77,7 +78,7 @@ public class CallbackManagerTest {
     }
 
     @Test
-    public void testRun() {
+    void testRun() {
         mgr.run();
 
         assertNotNull(mgr.getStartTime());
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/DelayedIdentStringTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/DelayedIdentStringTest.java
index 5b9856f41..a63202024 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/DelayedIdentStringTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/DelayedIdentStringTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,14 +22,14 @@
 package org.onap.policy.controlloop.actorserviceprovider;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-public class DelayedIdentStringTest {
+class DelayedIdentStringTest {
 
     private int countToStringCalls;
     private Object object;
@@ -37,8 +38,8 @@ public class DelayedIdentStringTest {
     /**
      * Initializes fields, including {@link #delay}.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         countToStringCalls = 0;
 
         object = new Object() {
@@ -53,7 +54,7 @@ public class DelayedIdentStringTest {
     }
 
     @Test
-    public void testToString() {
+    void testToString() {
         String delayed = delay.toString();
         assertEquals(1, countToStringCalls);
 
@@ -86,7 +87,7 @@ public class DelayedIdentStringTest {
     }
 
     @Test
-    public void testDelayedIdentString() {
+    void testDelayedIdentString() {
         // should not have called the object's toString() method yet
         assertEquals(0, countToStringCalls);
     }
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/DummyActor.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/DummyActor.java
index f10694de6..497e4ae52 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/DummyActor.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/DummyActor.java
@@ -3,7 +3,7 @@
  * TestActorServiceProvider
  * ================================================================================
  * Copyright (C) 2018 Ericsson. All rights reserved.
- * Modifications Copyright (C) 2019 Nordix Foundation.
+ * Modifications Copyright (C) 2019, 2024 Nordix Foundation.
  * Modifications Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/OperationOutcomeTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/OperationOutcomeTest.java
index 6f667bb76..61fb6a31e 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/OperationOutcomeTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/OperationOutcomeTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,17 +22,17 @@
 package org.onap.policy.controlloop.actorserviceprovider;
 
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.time.Instant;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.ControlLoopOperation;
 
-public class OperationOutcomeTest {
+class OperationOutcomeTest {
     private static final String ACTOR = "my-actor";
     private static final String OPERATION = "my-operation";
     private static final String TARGET = "my-target";
@@ -47,13 +48,13 @@ public class OperationOutcomeTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         outcome = new OperationOutcome();
     }
 
     @Test
-    public void testOperationOutcomeOperationOutcome() {
+    void testOperationOutcomeOperationOutcome() {
         setAll();
 
         OperationOutcome outcome2 = new OperationOutcome(outcome);
@@ -70,7 +71,7 @@ public class OperationOutcomeTest {
     }
 
     @Test
-    public void testToControlLoopOperation() {
+    void testToControlLoopOperation() {
         setAll();
 
         ControlLoopOperation outcome2 = outcome.toControlLoopOperation();
@@ -89,7 +90,7 @@ public class OperationOutcomeTest {
      * Tests both isFor() methods, as one invokes the other.
      */
     @Test
-    public void testIsFor() {
+    void testIsFor() {
         setAll();
 
         // null case
@@ -122,7 +123,7 @@ public class OperationOutcomeTest {
     }
 
     @Test
-    public void testSetResult() {
+    void testSetResult() {
         outcome.setResult(OperationResult.FAILURE_EXCEPTION);
         assertEquals(OperationResult.FAILURE_EXCEPTION, outcome.getResult());
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/UtilTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/UtilTest.java
index 0a2a5a90e..068a72365 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/UtilTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/UtilTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,10 +23,10 @@ package org.onap.policy.controlloop.actorserviceprovider;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import ch.qos.logback.classic.Logger;
 import java.util.LinkedHashMap;
@@ -35,14 +36,14 @@ import java.util.TreeMap;
 import java.util.concurrent.atomic.AtomicInteger;
 import lombok.Builder;
 import lombok.Data;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.utils.test.log.logback.ExtractAppender;
 import org.slf4j.LoggerFactory;
 
-public class UtilTest {
+class UtilTest {
     protected static final String EXPECTED_EXCEPTION = "expected exception";
 
     /**
@@ -54,26 +55,26 @@ public class UtilTest {
     /**
      * Initializes statics.
      */
-    @BeforeClass
-    public static void setUpBeforeClass() {
+    @BeforeAll
+    static void setUpBeforeClass() {
         appender.setContext(logger.getLoggerContext());
         appender.start();
 
         logger.addAppender(appender);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+    static void tearDownAfterClass() {
         appender.stop();
     }
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+   void setUp() {
         appender.clearExtractions();
     }
 
     @Test
-    public void testIdent() {
+   void testIdent() {
         Object object = new Object();
         String result = Util.ident(object).toString();
 
@@ -83,7 +84,7 @@ public class UtilTest {
     }
 
     @Test
-    public void testRunFunction() {
+   void testRunFunction() {
         // no exception, no log
         AtomicInteger count = new AtomicInteger();
         Util.runFunction(() -> count.incrementAndGet(), "no error");
@@ -110,7 +111,7 @@ public class UtilTest {
     }
 
     @Test
-    public void testTranslate() {
+   void testTranslate() {
         // Abc => Abc
         final Abc abc = Abc.builder().intValue(1).strValue("hello").anotherString("another").build();
         Abc abc2 = Util.translate("abc to abc", abc, Abc.class);
@@ -137,7 +138,7 @@ public class UtilTest {
     }
 
     @Test
-    public void testTranslateToMap() {
+    void testTranslateToMap() {
         assertNull(Util.translateToMap("map: null", null));
 
         // Abc => Map
@@ -155,7 +156,7 @@ public class UtilTest {
 
     @Data
     @Builder
-    public static class Abc {
+    static class Abc {
         private int intValue;
         private String strValue;
         private String anotherString;
@@ -164,17 +165,17 @@ public class UtilTest {
     // this shares some fields with Abc so the data should transfer
     @Data
     @Builder
-    public static class Similar {
+    static class Similar {
         private int intValue;
         private String strValue;
     }
 
     // throws an exception when getXxx() is used
-    public static class DataWithException {
+    static class DataWithException {
         @SuppressWarnings("unused")
         private int intValue;
 
-        public int getIntValue() {
+        int getIntValue() {
             throw new IllegalStateException();
         }
     }
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/ActorImplTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/ActorImplTest.java
index cf07d3b2b..1635c16ce 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/ActorImplTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/ActorImplTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,10 +23,10 @@ package org.onap.policy.controlloop.actorserviceprovider.impl;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.never;
@@ -37,8 +38,8 @@ import static org.mockito.Mockito.when;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.stream.Collectors;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ObjectValidationResult;
 import org.onap.policy.common.parameters.ValidationStatus;
 import org.onap.policy.controlloop.actorserviceprovider.Operation;
@@ -47,7 +48,7 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.ActorParams;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ParameterValidationRuntimeException;
 
-public class ActorImplTest {
+class ActorImplTest {
     private static final String EXPECTED_EXCEPTION = "expected exception";
     private static final String ACTOR_NAME = "my-actor";
     private static final String OPER1 = "add";
@@ -72,8 +73,8 @@ public class ActorImplTest {
     /**
      * Initializes the fields, including a fully populated {@link #actor}.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+   void setUp() {
         oper1 = spy(new MyOper(OPER1));
         oper2 = spy(new MyOper(OPER2));
         oper3 = spy(new MyOper(OPER3));
@@ -90,14 +91,14 @@ public class ActorImplTest {
     }
 
     @Test
-    public void testActorImpl_testGetName() {
+   void testActorImpl_testGetName() {
         assertEquals(ACTOR_NAME, actor.getName());
         assertEquals(4, actor.getOperationNames().size());
         assertEquals(0, actor.getSequenceNumber());
     }
 
     @Test
-    public void testDoStart() {
+   void testDoStart() {
         actor.configure(params);
         assertEquals(4, actor.getOperationNames().size());
 
@@ -130,7 +131,7 @@ public class ActorImplTest {
     }
 
     @Test
-    public void testDoStop() {
+   void testDoStop() {
         actor.configure(params);
         actor.start();
         assertEquals(4, actor.getOperationNames().size());
@@ -162,7 +163,7 @@ public class ActorImplTest {
     }
 
     @Test
-    public void testDoShutdown() {
+   void testDoShutdown() {
         actor.configure(params);
         actor.start();
         assertEquals(4, actor.getOperationNames().size());
@@ -194,7 +195,7 @@ public class ActorImplTest {
     }
 
     @Test
-    public void testAddOperator() {
+    void testAddOperator() {
         // cannot add operators if already configured
         actor.configure(params);
         assertThatIllegalStateException().isThrownBy(() -> actor.addOperator(oper1));
@@ -215,7 +216,7 @@ public class ActorImplTest {
     }
 
     @Test
-    public void testGetOperator() {
+    void testGetOperator() {
         assertSame(oper1, actor.getOperator(OPER1));
         assertSame(oper3, actor.getOperator(OPER3));
 
@@ -223,7 +224,7 @@ public class ActorImplTest {
     }
 
     @Test
-    public void testGetOperators() {
+    void testGetOperators() {
         // @formatter:off
         assertEquals("[add, divide, multiply, subtract]",
                         actor.getOperators().stream()
@@ -235,7 +236,7 @@ public class ActorImplTest {
     }
 
     @Test
-    public void testGetOperationNames() {
+    void testGetOperationNames() {
         // @formatter:off
         assertEquals("[add, divide, multiply, subtract]",
                         actor.getOperationNames().stream()
@@ -246,7 +247,7 @@ public class ActorImplTest {
     }
 
     @Test
-    public void testDoConfigure() {
+    void testDoConfigure() {
         actor.configure(params);
         assertTrue(actor.isConfigured());
 
@@ -266,7 +267,7 @@ public class ActorImplTest {
      * exceptions.
      */
     @Test
-    public void testDoConfigureExceptions() {
+    void testDoConfigureExceptions() {
         makeValidException(oper1);
         makeRuntimeException(oper2);
         makeValidException(oper3);
@@ -284,7 +285,7 @@ public class ActorImplTest {
      * </ul>
      */
     @Test
-    public void testDoConfigureConfigure() {
+    void testDoConfigureConfigure() {
         // configure one operator
         oper1.configure(sub1);
 
@@ -349,7 +350,7 @@ public class ActorImplTest {
     }
 
     @Test
-    public void testMakeOperatorParameters() {
+    void testMakeOperatorParameters() {
         actor.configure(params);
 
         // each operator should have received its own parameters
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicActorTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicActorTest.java
index 64d530d77..5ecebd668 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicActorTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicActorTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,11 +23,11 @@ package org.onap.policy.controlloop.actorserviceprovider.impl;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNotSame;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 
@@ -34,13 +35,13 @@ import java.util.Map;
 import java.util.Properties;
 import java.util.TreeMap;
 import java.util.function.Function;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.event.comm.TopicEndpointManager;
 import org.onap.policy.common.endpoints.event.comm.client.BidirectionalTopicClientException;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
@@ -48,8 +49,8 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.Bidirectional
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ParameterValidationRuntimeException;
 import org.onap.policy.controlloop.actorserviceprovider.topic.BidirectionalTopicHandler;
 
-@RunWith(MockitoJUnitRunner.class)
-public class BidirectionalTopicActorTest {
+@ExtendWith(MockitoExtension.class)
+class BidirectionalTopicActorTest {
 
     private static final String ACTOR = "my-actor";
     private static final String UNKNOWN = "unknown";
@@ -69,8 +70,8 @@ public class BidirectionalTopicActorTest {
     /**
      * Configures the endpoints.
      */
-    @BeforeClass
-    public static void setUpBeforeClass() {
+    @BeforeAll
+    static void setUpBeforeClass() {
         Properties props = new Properties();
         props.setProperty("noop.sink.topics", MY_SINK);
         props.setProperty("noop.source.topics", MY_SOURCE1 + "," + MY_SOURCE2);
@@ -81,8 +82,8 @@ public class BidirectionalTopicActorTest {
         TopicEndpointManager.getManager().addTopicSources(props);
     }
 
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+    static void tearDownAfterClass() {
         // clear all topics after the tests
         TopicEndpointManager.getManager().shutdown();
     }
@@ -90,14 +91,14 @@ public class BidirectionalTopicActorTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         actor = new MyActor();
         actor.configure(Util.translateToMap(ACTOR, makeParams()));
     }
 
     @Test
-    public void testDoStart() throws BidirectionalTopicClientException {
+    void testDoStart() throws BidirectionalTopicClientException {
         // allocate some handlers
         actor.getTopicHandler(MY_SINK, MY_SOURCE1);
         actor.getTopicHandler(MY_SINK, MY_SOURCE2);
@@ -116,7 +117,7 @@ public class BidirectionalTopicActorTest {
     }
 
     @Test
-    public void testDoStop() throws BidirectionalTopicClientException {
+    void testDoStop() throws BidirectionalTopicClientException {
         // allocate some handlers
         actor.getTopicHandler(MY_SINK, MY_SOURCE1);
         actor.getTopicHandler(MY_SINK, MY_SOURCE2);
@@ -135,7 +136,8 @@ public class BidirectionalTopicActorTest {
     }
 
     @Test
-    public void testDoShutdown() {
+    void testDoShutdown() throws BidirectionalTopicClientException {
+
         // allocate some handlers
         actor.getTopicHandler(MY_SINK, MY_SOURCE1);
         actor.getTopicHandler(MY_SINK, MY_SOURCE2);
@@ -154,38 +156,38 @@ public class BidirectionalTopicActorTest {
     }
 
     @Test
-    public void testMakeOperatorParameters() {
+    void testMakeOperatorParameters() {
         BidirectionalTopicActorParams params = makeParams();
 
         final BidirectionalTopicActor<BidirectionalTopicActorParams> prov =
-                        new BidirectionalTopicActor<>(ACTOR, BidirectionalTopicActorParams.class);
+            new BidirectionalTopicActor<>(ACTOR, BidirectionalTopicActorParams.class);
         Function<String, Map<String, Object>> maker =
-                        prov.makeOperatorParameters(Util.translateToMap(prov.getName(), params));
+            prov.makeOperatorParameters(Util.translateToMap(prov.getName(), params));
 
         assertNull(maker.apply(UNKNOWN));
 
         // use a TreeMap to ensure the properties are sorted
         assertEquals("{sinkTopic=my-sink, sourceTopic=my-source-A, timeoutSec=10}",
-                        new TreeMap<>(maker.apply("operA")).toString());
+            new TreeMap<>(maker.apply("operA")).toString());
 
         assertEquals("{sinkTopic=my-sink, sourceTopic=topicB, timeoutSec=10}",
-                        new TreeMap<>(maker.apply("operB")).toString());
+            new TreeMap<>(maker.apply("operB")).toString());
 
         // with invalid actor parameters
         params.setOperations(null);
         Map<String, Object> map = Util.translateToMap(prov.getName(), params);
         assertThatThrownBy(() -> prov.makeOperatorParameters(map))
-                        .isInstanceOf(ParameterValidationRuntimeException.class);
+            .isInstanceOf(ParameterValidationRuntimeException.class);
     }
 
     @Test
-    public void testBidirectionalTopicActor() {
+    void testBidirectionalTopicActor() {
         assertEquals(ACTOR, actor.getName());
         assertEquals(ACTOR, actor.getFullName());
     }
 
     @Test
-    public void testGetTopicHandler() {
+     void testGetTopicHandler() throws BidirectionalTopicClientException {
         assertSame(handler1, actor.getTopicHandler(MY_SINK, MY_SOURCE1));
         assertSame(handler2, actor.getTopicHandler(MY_SINK, MY_SOURCE2));
 
@@ -193,7 +195,7 @@ public class BidirectionalTopicActorTest {
     }
 
     @Test
-    public void testMakeTopicHandler() {
+     void testMakeTopicHandler() throws BidirectionalTopicClientException {
         // use a real actor
         actor = new BidirectionalTopicActor<>(ACTOR, BidirectionalTopicActorParams.class);
 
@@ -214,21 +216,21 @@ public class BidirectionalTopicActorTest {
 
         // @formatter:off
         params.setOperations(Map.of(
-                        "operA", Map.of(),
-                        "operB", Map.of("sourceTopic", "topicB")));
+            "operA", Map.of(),
+            "operB", Map.of("sourceTopic", "topicB")));
         // @formatter:on
         return params;
     }
 
     private class MyActor extends BidirectionalTopicActor<BidirectionalTopicActorParams> {
 
-        public MyActor() {
+        MyActor() {
             super(ACTOR, BidirectionalTopicActorParams.class);
         }
 
         @Override
         protected BidirectionalTopicHandler makeTopicHandler(String sinkTopic, String sourceTopic)
-                        throws BidirectionalTopicClientException {
+            throws BidirectionalTopicClientException {
 
             if (MY_SINK.equals(sinkTopic)) {
                 if (MY_SOURCE1.equals(sourceTopic)) {
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicOperationTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicOperationTest.java
index 662f864c7..1fc8cc18e 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicOperationTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicOperationTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,11 +24,11 @@ package org.onap.policy.controlloop.actorserviceprovider.impl;
 import static org.assertj.core.api.Assertions.assertThatCode;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.never;
@@ -42,13 +43,14 @@ import java.util.function.BiConsumer;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.Setter;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Captor;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
 import org.onap.policy.common.utils.coder.Coder;
 import org.onap.policy.common.utils.coder.CoderException;
@@ -62,8 +64,8 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOp
 import org.onap.policy.controlloop.actorserviceprovider.topic.BidirectionalTopicHandler;
 import org.onap.policy.controlloop.actorserviceprovider.topic.Forwarder;
 
-@RunWith(MockitoJUnitRunner.class)
-public class BidirectionalTopicOperationTest {
+@ExtendWith(MockitoExtension.class)
+class BidirectionalTopicOperationTest {
     private static final CommInfrastructure SINK_INFRA = CommInfrastructure.NOOP;
     private static final IllegalStateException EXPECTED_EXCEPTION = new IllegalStateException("expected exception");
     private static final String ACTOR = "my-actor";
@@ -98,14 +100,14 @@ public class BidirectionalTopicOperationTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() throws CoderException {
-        when(config.getTopicHandler()).thenReturn(handler);
-        when(config.getForwarder()).thenReturn(forwarder);
-        when(config.getTimeoutMs()).thenReturn(TIMEOUT_MS);
+    @BeforeEach
+    void setUp() throws CoderException {
+        Mockito.lenient().when(config.getTopicHandler()).thenReturn(handler);
+        Mockito.lenient().when(config.getForwarder()).thenReturn(forwarder);
+        Mockito.lenient().when(config.getTimeoutMs()).thenReturn(TIMEOUT_MS);
 
-        when(handler.send(any())).thenReturn(true);
-        when(handler.getSinkTopicCommInfrastructure()).thenReturn(SINK_INFRA);
+        Mockito.lenient().when(handler.send(any())).thenReturn(true);
+        Mockito.lenient().when(handler.getSinkTopicCommInfrastructure()).thenReturn(SINK_INFRA);
 
         executor = new PseudoExecutor();
 
@@ -119,11 +121,11 @@ public class BidirectionalTopicOperationTest {
 
         ntimes = 1;
 
-        oper = new MyOperation();
+        oper = new MyOperation(params, config);
     }
 
     @Test
-    public void testConstructor_testGetTopicHandler_testGetForwarder_testGetTopicParams() {
+    void testConstructor_testGetTopicHandler_testGetForwarder_testGetTopicParams() {
         assertEquals(ACTOR, oper.getActorName());
         assertEquals(OPERATION, oper.getName());
         assertSame(handler, oper.getTopicHandler());
@@ -133,8 +135,7 @@ public class BidirectionalTopicOperationTest {
     }
 
     @Test
-    public void testStartOperationAsync() throws Exception {
-
+    void testStartOperationAsync() throws Exception {
         // tell it to expect three responses
         ntimes = 3;
 
@@ -173,11 +174,11 @@ public class BidirectionalTopicOperationTest {
      * Tests startOperationAsync() when processResponse() throws an exception.
      */
     @Test
-    public void testStartOperationAsyncProcException() throws Exception {
-        oper = new MyOperation() {
+    void testStartOperationAsyncProcException() throws Exception {
+        oper = new MyOperation(params, config) {
             @Override
             protected OperationOutcome processResponse(OperationOutcome outcome, String rawResponse,
-                            StandardCoderObject scoResponse) {
+                                                       StandardCoderObject scoResponse) {
                 throw EXPECTED_EXCEPTION;
             }
         };
@@ -201,7 +202,7 @@ public class BidirectionalTopicOperationTest {
      * Tests startOperationAsync() when the publisher throws an exception.
      */
     @Test
-    public void testStartOperationAsyncPubException() throws Exception {
+     void testStartOperationAsyncPubException() throws Exception {
         // indicate that nothing was published
         when(handler.send(any())).thenReturn(false);
 
@@ -214,7 +215,7 @@ public class BidirectionalTopicOperationTest {
     }
 
     @Test
-    public void testGetTimeoutMsInteger() {
+     void testGetTimeoutMsInteger() {
         // use default
         assertEquals(TIMEOUT_MS, oper.getTimeoutMs(null));
         assertEquals(TIMEOUT_MS, oper.getTimeoutMs(0));
@@ -224,7 +225,7 @@ public class BidirectionalTopicOperationTest {
     }
 
     @Test
-    public void testPublishRequest() {
+     void testPublishRequest() {
         assertThatCode(() -> oper.publishRequest(new MyRequest())).doesNotThrowAnyException();
     }
 
@@ -232,7 +233,7 @@ public class BidirectionalTopicOperationTest {
      * Tests publishRequest() when nothing is published.
      */
     @Test
-    public void testPublishRequestUnpublished() {
+     void testPublishRequestUnpublished() {
         when(handler.send(any())).thenReturn(false);
         assertThatIllegalStateException().isThrownBy(() -> oper.publishRequest(new MyRequest()));
     }
@@ -241,8 +242,8 @@ public class BidirectionalTopicOperationTest {
      * Tests publishRequest() when the request type is a String.
      */
     @Test
-    public void testPublishRequestString() {
-        MyStringOperation oper2 = new MyStringOperation();
+     void testPublishRequestString() {
+        MyStringOperation oper2 = new MyStringOperation(params, config);
         assertThatCode(() -> oper2.publishRequest(TEXT)).doesNotThrowAnyException();
     }
 
@@ -250,7 +251,7 @@ public class BidirectionalTopicOperationTest {
      * Tests publishRequest() when the coder throws an exception.
      */
     @Test
-    public void testPublishRequestException() {
+     void testPublishRequestException() {
         setOperCoderException();
         assertThatIllegalArgumentException().isThrownBy(() -> oper.publishRequest(new MyRequest()));
     }
@@ -259,8 +260,8 @@ public class BidirectionalTopicOperationTest {
      * Tests processResponse() when it's a success and the response type is a String.
      */
     @Test
-    public void testProcessResponseSuccessString() {
-        MyStringOperation oper2 = new MyStringOperation();
+     void testProcessResponseSuccessString() {
+        MyStringOperation oper2 = new MyStringOperation(params, config);
 
         assertSame(outcome, oper2.processResponse(outcome, TEXT, null));
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
@@ -272,8 +273,8 @@ public class BidirectionalTopicOperationTest {
      * StandardCoderObject.
      */
     @Test
-    public void testProcessResponseSuccessSco() {
-        MyScoOperation oper2 = new MyScoOperation();
+     void testProcessResponseSuccessSco() {
+        MyScoOperation oper2 = new MyScoOperation(params, config);
 
         assertSame(outcome, oper2.processResponse(outcome, responseText, stdResponse));
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
@@ -284,7 +285,7 @@ public class BidirectionalTopicOperationTest {
      * Tests processResponse() when it's a failure.
      */
     @Test
-    public void testProcessResponseFailure() throws CoderException {
+     void testProcessResponseFailure() throws CoderException {
         // indicate error in the response
         MyResponse resp = new MyResponse();
         resp.setOutput("error");
@@ -301,7 +302,7 @@ public class BidirectionalTopicOperationTest {
      * Tests processResponse() when the decoder succeeds.
      */
     @Test
-    public void testProcessResponseDecodeOk() throws CoderException {
+     void testProcessResponseDecodeOk() throws CoderException {
         assertSame(outcome, oper.processResponse(outcome, responseText, stdResponse));
         assertEquals(OperationResult.SUCCESS, outcome.getResult());
         assertEquals(response, outcome.getResponse());
@@ -311,20 +312,18 @@ public class BidirectionalTopicOperationTest {
      * Tests processResponse() when the decoder throws an exception.
      */
     @Test
-    public void testProcessResponseDecodeExcept() throws CoderException {
-        // @formatter:off
+     void testProcessResponseDecodeExcept() throws CoderException {
         assertThatIllegalArgumentException().isThrownBy(
             () -> oper.processResponse(outcome, "{invalid json", stdResponse));
-        // @formatter:on
     }
 
     @Test
-    public void testPostProcessResponse() {
+     void testPostProcessResponse() {
         assertThatCode(() -> oper.postProcessResponse(outcome, null, null)).doesNotThrowAnyException();
     }
 
     @Test
-    public void testGetCoder() {
+     void testGetCoder() {
         assertNotNull(oper.getCoder());
     }
 
@@ -332,7 +331,7 @@ public class BidirectionalTopicOperationTest {
      * Creates a new {@link #oper} whose coder will throw an exception.
      */
     private void setOperCoderException() {
-        oper = new MyOperation() {
+        oper = new MyOperation(params, config) {
             @Override
             protected Coder getCoder() {
                 return new StandardCoder() {
@@ -347,7 +346,7 @@ public class BidirectionalTopicOperationTest {
 
     @Getter
     @Setter
-    public static class MyRequest {
+    static class MyRequest {
         private String theRequestId = REQ_ID;
         private String input;
     }
@@ -355,7 +354,7 @@ public class BidirectionalTopicOperationTest {
     @Getter
     @Setter
     @EqualsAndHashCode
-    public static class MyResponse {
+    static class MyResponse {
         private String requestId;
         private String output;
     }
@@ -363,8 +362,8 @@ public class BidirectionalTopicOperationTest {
 
     private class MyStringOperation extends BidirectionalTopicOperation<String, String> {
 
-        public MyStringOperation() {
-            super(BidirectionalTopicOperationTest.this.params, config, String.class, Collections.emptyList());
+        MyStringOperation(ControlLoopOperationParams params, BidirectionalTopicConfig config) {
+            super(params, config, String.class, Collections.emptyList());
         }
 
         @Override
@@ -385,9 +384,8 @@ public class BidirectionalTopicOperationTest {
 
 
     private class MyScoOperation extends BidirectionalTopicOperation<MyRequest, StandardCoderObject> {
-        public MyScoOperation() {
-            super(BidirectionalTopicOperationTest.this.params, config, StandardCoderObject.class,
-                            Collections.emptyList());
+        MyScoOperation(ControlLoopOperationParams params, BidirectionalTopicConfig config) {
+            super(params, config, StandardCoderObject.class, Collections.emptyList());
         }
 
         @Override
@@ -408,8 +406,8 @@ public class BidirectionalTopicOperationTest {
 
 
     private class MyOperation extends BidirectionalTopicOperation<MyRequest, MyResponse> {
-        public MyOperation() {
-            super(BidirectionalTopicOperationTest.this.params, config, MyResponse.class, Collections.emptyList());
+        MyOperation(ControlLoopOperationParams params, BidirectionalTopicConfig config) {
+            super(params, config, MyResponse.class, Collections.emptyList());
         }
 
         @Override
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicOperatorTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicOperatorTest.java
index 4d19782c2..38e8a29bb 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicOperatorTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/BidirectionalTopicOperatorTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,20 +23,21 @@ package org.onap.policy.controlloop.actorserviceprovider.impl;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
-import static org.mockito.Mockito.when;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicReference;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.BidirectionalTopicConfig;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.BidirectionalTopicParams;
@@ -46,8 +48,9 @@ import org.onap.policy.controlloop.actorserviceprovider.topic.BidirectionalTopic
 import org.onap.policy.controlloop.actorserviceprovider.topic.Forwarder;
 import org.onap.policy.controlloop.actorserviceprovider.topic.SelectorKey;
 
-@RunWith(MockitoJUnitRunner.class)
-public class BidirectionalTopicOperatorTest {
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class BidirectionalTopicOperatorTest {
     private static final String ACTOR = "my-actor";
     private static final String OPERATION = "my-operation";
     private static final String MY_SOURCE = "my-source";
@@ -70,12 +73,12 @@ public class BidirectionalTopicOperatorTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         keys = List.of(new SelectorKey(""));
 
-        when(mgr.getTopicHandler(MY_SINK, MY_SOURCE)).thenReturn(handler);
-        when(handler.addForwarder(keys)).thenReturn(forwarder);
+        Mockito.lenient().when(mgr.getTopicHandler(MY_SINK, MY_SOURCE)).thenReturn(handler);
+        Mockito.lenient().when(handler.addForwarder(keys)).thenReturn(forwarder);
 
         oper = new MyOperator(keys);
 
@@ -86,14 +89,14 @@ public class BidirectionalTopicOperatorTest {
     }
 
     @Test
-    public void testConstructor_testGetParams_testGetTopicHandler_testGetForwarder() {
+    void testConstructor_testGetParams_testGetTopicHandler_testGetForwarder() {
         assertEquals(ACTOR, oper.getActorName());
         assertEquals(OPERATION, oper.getName());
         assertNotNull(oper.getCurrentConfig());
     }
 
     @Test
-    public void testDoConfigure() {
+    void testDoConfigure() {
         oper.stop();
 
         // invalid parameters
@@ -104,7 +107,7 @@ public class BidirectionalTopicOperatorTest {
     }
 
     @Test
-    public void testBuildOperator() {
+    void testBuildOperator() {
         AtomicReference<ControlLoopOperationParams> paramsRef = new AtomicReference<>();
         AtomicReference<BidirectionalTopicConfig> configRef = new AtomicReference<>();
 
@@ -147,7 +150,7 @@ public class BidirectionalTopicOperatorTest {
 
 
     private class MyOperator extends BidirectionalTopicOperator {
-        public MyOperator(List<SelectorKey> selectorKeys) {
+        MyOperator(List<SelectorKey> selectorKeys) {
             super(ACTOR, OPERATION, mgr, selectorKeys);
         }
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpActorTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpActorTest.java
index 5407f1fee..56a4c94cc 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpActorTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpActorTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,19 +22,19 @@
 package org.onap.policy.controlloop.actorserviceprovider.impl;
 
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 import java.util.Map;
 import java.util.TreeMap;
 import java.util.function.Function;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpActorParams;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ParameterValidationRuntimeException;
 
-public class HttpActorTest {
+class HttpActorTest {
 
     private static final String ACTOR = "my-actor";
     private static final String UNKNOWN = "unknown";
@@ -42,13 +43,13 @@ public class HttpActorTest {
 
     private HttpActor<HttpActorParams> actor;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         actor = new HttpActor<>(ACTOR, HttpActorParams.class);
     }
 
     @Test
-    public void testMakeOperatorParameters() {
+    void testMakeOperatorParameters() {
         HttpActorParams params = new HttpActorParams();
         params.setClientName(CLIENT);
         params.setTimeoutSec(TIMEOUT);
@@ -80,7 +81,7 @@ public class HttpActorTest {
     }
 
     @Test
-    public void testHttpActor() {
+    void testHttpActor() {
         assertEquals(ACTOR, actor.getName());
         assertEquals(ACTOR, actor.getFullName());
     }
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpOperationTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpOperationTest.java
index 7a99a54ba..9813d1b7a 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpOperationTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,11 +25,11 @@ import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatCode;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.when;
 
@@ -59,13 +59,15 @@ import java.util.concurrent.TimeoutException;
 import java.util.concurrent.atomic.AtomicReference;
 import lombok.Getter;
 import lombok.Setter;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams.TopicParamsBuilder;
@@ -85,8 +87,9 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOp
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams;
 
-@RunWith(MockitoJUnitRunner.class)
-public class HttpOperationTest {
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class HttpOperationTest {
 
     private static final IllegalStateException EXPECTED_EXCEPTION = new IllegalStateException("expected exception");
     private static final String ACTOR = "my-actor";
@@ -129,8 +132,8 @@ public class HttpOperationTest {
     /**
      * Starts the simulator.
      */
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+   void setUpBeforeClass() throws Exception {
         // allocate a port
         int port = NetworkUtil.allocPort();
 
@@ -160,26 +163,26 @@ public class HttpOperationTest {
     /**
      * Destroys the Http factories and stops the appender.
      */
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+   static void tearDownAfterClass() {
         HttpClientFactoryInstance.getClientFactory().destroy();
         HttpServletServerFactoryInstance.getServerFactory().destroy();
     }
 
     /**
-     * Initializes fields, including {@link #oper}, and resets the static fields used by
+     * Initializes fields, including {@link #oper}, and resets thestatic fields used by
      * the REST server.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+   void setUp() {
         rejectRequest = false;
         nget = 0;
         npost = 0;
         nput = 0;
         ndelete = 0;
 
-        when(response.readEntity(String.class)).thenReturn(TEXT);
-        when(response.getStatus()).thenReturn(200);
+        Mockito.lenient().when(response.readEntity(String.class)).thenReturn(TEXT);
+        Mockito.lenient().when(response.getStatus()).thenReturn(200);
 
         params = ControlLoopOperationParams.builder().actor(ACTOR).operation(OPERATION).requestId(REQ_ID).build();
 
@@ -188,7 +191,7 @@ public class HttpOperationTest {
         callback = new AtomicReference<>();
         future = new CompletableFuture<>();
 
-        when(clientFactory.get(any())).thenReturn(client);
+        Mockito.lenient().when(clientFactory.get(any())).thenReturn(client);
 
         initConfig(HTTP_CLIENT);
 
@@ -196,24 +199,24 @@ public class HttpOperationTest {
     }
 
     @Test
-    public void testHttpOperator() {
+   void testHttpOperator() {
         assertEquals(ACTOR, oper.getActorName());
         assertEquals(OPERATION, oper.getName());
         assertEquals(ACTOR + "." + OPERATION, oper.getFullName());
     }
 
     @Test
-    public void testMakeHeaders() {
+   void testMakeHeaders() {
         assertEquals(Collections.emptyMap(), oper.makeHeaders());
     }
 
     @Test
-    public void testGetPath() {
+   void testGetPath() {
         assertEquals(PATH, oper.getPath());
     }
 
     @Test
-    public void testMakeUrl() {
+   void testMakeUrl() {
         // use a real client
         initRealConfig(HTTP_CLIENT);
 
@@ -223,7 +226,7 @@ public class HttpOperationTest {
     }
 
     @Test
-    public void testDoConfigureMapOfStringObject_testGetClient_testGetPath_testGetTimeoutMs() {
+   void testDoConfigureMapOfStringObject_testGetClient_testGetPath_testGetTimeoutMs() {
 
         // use value from operator
         assertEquals(1000L, oper.getTimeoutMs(null));
@@ -237,7 +240,7 @@ public class HttpOperationTest {
      * Tests handleResponse() when it completes.
      */
     @Test
-    public void testHandleResponseComplete() throws Exception {
+   void testHandleResponseComplete() throws Exception {
         CompletableFuture<OperationOutcome> future2 = oper.handleResponse(outcome, PATH, cb -> {
             callback.set(cb);
             return future;
@@ -257,7 +260,7 @@ public class HttpOperationTest {
      * Tests handleResponse() when it fails.
      */
     @Test
-    public void testHandleResponseFailed() throws Exception {
+   void testHandleResponseFailed() throws Exception {
         CompletableFuture<OperationOutcome> future2 = oper.handleResponse(outcome, PATH, cb -> {
             callback.set(cb);
             return future;
@@ -278,7 +281,7 @@ public class HttpOperationTest {
      * Tests processResponse() when it's a success and the response type is a String.
      */
     @Test
-    public void testProcessResponseSuccessString() throws Exception {
+    void testProcessResponseSuccessString() throws Exception {
         CompletableFuture<OperationOutcome> result = oper.processResponse(outcome, PATH, response);
         assertTrue(result.isDone());
         assertSame(outcome, result.get());
@@ -290,7 +293,7 @@ public class HttpOperationTest {
      * Tests processResponse() when it's a failure.
      */
     @Test
-    public void testProcessResponseFailure() throws Exception {
+    void testProcessResponseFailure() throws Exception {
         when(response.getStatus()).thenReturn(555);
         CompletableFuture<OperationOutcome> result = oper.processResponse(outcome, PATH, response);
         assertTrue(result.isDone());
@@ -303,7 +306,7 @@ public class HttpOperationTest {
      * Tests processResponse() when the decoder succeeds.
      */
     @Test
-    public void testProcessResponseDecodeOk() throws Exception {
+    void testProcessResponseDecodeOk() throws Exception {
         when(response.readEntity(String.class)).thenReturn("10");
 
         MyGetOperation<Integer> oper2 = new MyGetOperation<>(Integer.class);
@@ -319,19 +322,19 @@ public class HttpOperationTest {
      * Tests processResponse() when the decoder throws an exception.
      */
     @Test
-    public void testProcessResponseDecodeExcept() throws CoderException {
+    void testProcessResponseDecodeExcept() throws CoderException {
         MyGetOperation<Integer> oper2 = new MyGetOperation<>(Integer.class);
 
         assertThatIllegalArgumentException().isThrownBy(() -> oper2.processResponse(outcome, PATH, response));
     }
 
     @Test
-    public void testPostProcessResponse() {
+    void testPostProcessResponse() {
         assertThatCode(() -> oper.postProcessResponse(outcome, PATH, null, null)).doesNotThrowAnyException();
     }
 
     @Test
-    public void testIsSuccess() {
+    void testIsSuccess() {
         when(response.getStatus()).thenReturn(200);
         assertTrue(oper.isSuccess(response, null));
 
@@ -343,7 +346,7 @@ public class HttpOperationTest {
      * Tests a GET.
      */
     @Test
-    public void testGet() throws Exception {
+    void testGet() throws Exception {
         // use a real client
         initRealConfig(HTTP_CLIENT);
 
@@ -360,7 +363,7 @@ public class HttpOperationTest {
      * Tests a DELETE.
      */
     @Test
-    public void testDelete() throws Exception {
+    void testDelete() throws Exception {
         // use a real client
         initRealConfig(HTTP_CLIENT);
 
@@ -377,7 +380,7 @@ public class HttpOperationTest {
      * Tests a POST.
      */
     @Test
-    public void testPost() throws Exception {
+    void testPost() throws Exception {
         // use a real client
         initRealConfig(HTTP_CLIENT);
         MyPostOperation oper2 = new MyPostOperation();
@@ -393,7 +396,7 @@ public class HttpOperationTest {
      * Tests a PUT.
      */
     @Test
-    public void testPut() throws Exception {
+    void testPut() throws Exception {
         // use a real client
         initRealConfig(HTTP_CLIENT);
 
@@ -407,7 +410,7 @@ public class HttpOperationTest {
     }
 
     @Test
-    public void testMakeDecoder() {
+    void testMakeDecoder() {
         assertNotNull(oper.getCoder());
     }
 
@@ -480,18 +483,18 @@ public class HttpOperationTest {
 
     @Getter
     @Setter
-    public static class MyRequest {
+    static class MyRequest {
         private String input = "some input";
     }
 
     @Getter
     @Setter
-    public static class MyResponse {
+    static class MyResponse {
         private String output = "some output";
     }
 
     private class MyGetOperation<T> extends HttpOperation<T> {
-        public MyGetOperation(Class<T> responseClass) {
+        MyGetOperation(Class<T> responseClass) {
             super(HttpOperationTest.this.params, HttpOperationTest.this.config, responseClass, Collections.emptyList());
         }
 
@@ -512,7 +515,7 @@ public class HttpOperationTest {
     }
 
     private class MyPostOperation extends HttpOperation<MyResponse> {
-        public MyPostOperation() {
+        MyPostOperation() {
             super(HttpOperationTest.this.params, HttpOperationTest.this.config, MyResponse.class,
                             Collections.emptyList());
         }
@@ -540,7 +543,7 @@ public class HttpOperationTest {
     }
 
     private class MyPutOperation extends HttpOperation<MyResponse> {
-        public MyPutOperation() {
+        MyPutOperation() {
             super(HttpOperationTest.this.params, HttpOperationTest.this.config, MyResponse.class,
                             Collections.emptyList());
         }
@@ -568,7 +571,7 @@ public class HttpOperationTest {
     }
 
     private class MyDeleteOperation extends HttpOperation<String> {
-        public MyDeleteOperation() {
+        MyDeleteOperation() {
             super(HttpOperationTest.this.params, HttpOperationTest.this.config, String.class, Collections.emptyList());
         }
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpOperatorTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpOperatorTest.java
index 35cf08227..b070a6136 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpOperatorTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpOperatorTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,21 +23,22 @@ package org.onap.policy.controlloop.actorserviceprovider.impl;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNotSame;
-import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.mockito.Mockito.when;
 
 import java.util.Collections;
 import java.util.Map;
 import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClient;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactory;
 import org.onap.policy.controlloop.actorserviceprovider.Operation;
@@ -47,8 +49,9 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ParameterValidationRuntimeException;
 
-@RunWith(MockitoJUnitRunner.class)
-public class HttpOperatorTest {
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class HttpOperatorTest {
 
     private static final String ACTOR = "my-actor";
     private static final String OPERATION = "my-name";
@@ -68,8 +71,8 @@ public class HttpOperatorTest {
      * Initializes fields, including {@link #oper}, and resets the static fields used by
      * the REST server.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         when(factory.get(HTTP_CLIENT)).thenReturn(client);
 
         oper = new MyOperator();
@@ -80,14 +83,14 @@ public class HttpOperatorTest {
     }
 
     @Test
-    public void testHttpOperator() {
+    void testHttpOperator() {
         assertEquals(ACTOR, oper.getActorName());
         assertEquals(OPERATION, oper.getName());
         assertEquals(ACTOR + "." + OPERATION, oper.getFullName());
     }
 
     @Test
-    public void testDoConfigureMapOfStringObject_testGetConfig() {
+    void testDoConfigureMapOfStringObject_testGetConfig() {
         // start with an UNCONFIGURED operator
         oper.shutdown();
         oper = new MyOperator();
@@ -106,7 +109,7 @@ public class HttpOperatorTest {
     }
 
     @Test
-    public void testBuildOperation() {
+    void testBuildOperation() {
         HttpOperator oper2 = new MyOperator();
         assertNotNull(oper2);
         assertNotNull(oper2.getClientFactory());
@@ -137,13 +140,13 @@ public class HttpOperatorTest {
     }
 
     @Test
-    public void testGetClientFactory() {
+    void testGetClientFactory() {
         HttpOperator oper2 = new HttpOperator(ACTOR, OPERATION);
         assertNotNull(oper2.getClientFactory());
     }
 
     private class MyOperator extends HttpOperator {
-        public MyOperator() {
+        MyOperator() {
             super(ACTOR, OPERATION, MyOperation::new);
         }
 
@@ -154,7 +157,7 @@ public class HttpOperatorTest {
     }
 
     private class MyOperation extends HttpOperation<String> {
-        public MyOperation(ControlLoopOperationParams params, HttpConfig config) {
+        MyOperation(ControlLoopOperationParams params, HttpConfig config) {
             super(params, config, String.class, Collections.emptyList());
         }
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpPollingOperationTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpPollingOperationTest.java
index 2f7976ce5..0850bb358 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpPollingOperationTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpPollingOperationTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2023 Nordix Foundation.
+ * Modifications Copyright (C) 2023, 2024 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,11 +23,11 @@ package org.onap.policy.controlloop.actorserviceprovider.impl;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
@@ -38,11 +38,13 @@ import java.util.Collections;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ForkJoinPool;
 import java.util.concurrent.TimeUnit;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.mockito.stubbing.Answer;
 import org.onap.policy.common.endpoints.http.client.HttpClient;
 import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
@@ -54,8 +56,9 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingCo
 /**
  * Tests HttpOperation when polling is enabled.
  */
-@RunWith(MockitoJUnitRunner.class)
-public class HttpPollingOperationTest {
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class HttpPollingOperationTest {
     private static final String BASE_URI = "http://my-host:6969/base-uri/";
     private static final String MY_PATH = "my-path";
     private static final String FULL_PATH = BASE_URI + MY_PATH;
@@ -85,19 +88,19 @@ public class HttpPollingOperationTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() throws Exception {
-        when(client.getBaseUrl()).thenReturn(BASE_URI);
+    @BeforeEach
+    void setUp() throws Exception {
+        Mockito.lenient().when(client.getBaseUrl()).thenReturn(BASE_URI);
 
-        when(config.getClient()).thenReturn(client);
-        when(config.getMaxPolls()).thenReturn(MAX_POLLS);
-        when(config.getPollPath()).thenReturn(POLL_PATH);
-        when(config.getPollWaitSec()).thenReturn(POLL_WAIT_SEC);
+        Mockito.lenient().when(config.getClient()).thenReturn(client);
+        Mockito.lenient().when(config.getMaxPolls()).thenReturn(MAX_POLLS);
+        Mockito.lenient().when(config.getPollPath()).thenReturn(POLL_PATH);
+        Mockito.lenient().when(config.getPollWaitSec()).thenReturn(POLL_WAIT_SEC);
 
         response = MY_RESPONSE;
 
-        when(rawResponse.getStatus()).thenReturn(RESPONSE_SUCCESS);
-        when(rawResponse.readEntity(String.class)).thenReturn(response);
+        Mockito.lenient().when(rawResponse.getStatus()).thenReturn(RESPONSE_SUCCESS);
+        Mockito.lenient().when(rawResponse.readEntity(String.class)).thenReturn(response);
 
         params = ControlLoopOperationParams.builder().actor(MY_ACTOR).operation(MY_OPERATION).build();
         outcome = params.makeOutcome();
@@ -106,7 +109,7 @@ public class HttpPollingOperationTest {
     }
 
     @Test
-    public void testConstructor_testGetWaitMsGet() {
+    void testConstructor_testGetWaitMsGet() {
         assertEquals(MY_ACTOR, oper.getActorName());
         assertEquals(MY_OPERATION, oper.getName());
         assertSame(config, oper.getConfig());
@@ -114,7 +117,7 @@ public class HttpPollingOperationTest {
     }
 
     @Test
-    public void testSetUsePollExceptions() {
+    void testSetUsePollExceptions() {
         // should be no exception
         oper.setUsePolling();
 
@@ -125,7 +128,7 @@ public class HttpPollingOperationTest {
     }
 
     @Test
-    public void testPostProcess() throws Exception {
+    void testPostProcess() throws Exception {
         // completed
         oper.generateSubRequestId(2);
         CompletableFuture<OperationOutcome> future2 =
@@ -151,7 +154,7 @@ public class HttpPollingOperationTest {
      * Tests postProcess() when the poll is repeated a couple of times.
      */
     @Test
-    public void testPostProcessRepeated_testResetGetCount() throws Exception {
+    void testPostProcessRepeated_testResetGetCount() throws Exception {
         /*
          * Two accepts and then a success - should result in two polls.
          */
@@ -193,7 +196,7 @@ public class HttpPollingOperationTest {
     }
 
     @Test
-    public void testDetmStatus() {
+    void testDetmStatus() {
         // make an operation that does NOT override detmStatus()
         oper = new HttpOperation<String>(params, config, String.class, Collections.emptyList()) {};
 
@@ -228,7 +231,7 @@ public class HttpPollingOperationTest {
 
     private static class MyOper extends HttpOperation<String> {
 
-        public MyOper(ControlLoopOperationParams params, HttpConfig config) {
+        MyOper(ControlLoopOperationParams params, HttpConfig config) {
             super(params, config, String.class, Collections.emptyList());
 
             setUsePolling();
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpPollingOperatorTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpPollingOperatorTest.java
index f340f1972..ca81e2eb3 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpPollingOperatorTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpPollingOperatorTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,18 +22,20 @@
 package org.onap.policy.controlloop.actorserviceprovider.impl;
 
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.when;
 
 import java.util.Collections;
 import java.util.Map;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClient;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactory;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
@@ -42,8 +45,9 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingCo
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingParams;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ParameterValidationRuntimeException;
 
-@RunWith(MockitoJUnitRunner.class)
-public class HttpPollingOperatorTest {
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class HttpPollingOperatorTest {
     private static final String ACTOR = "my-actor";
     private static final String OPERATION = "my-name";
     private static final String CLIENT = "my-client";
@@ -64,8 +68,8 @@ public class HttpPollingOperatorTest {
      * Initializes fields, including {@link #oper}, and resets the static fields used by
      * the REST server.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         when(factory.get(CLIENT)).thenReturn(client);
 
         oper = new MyOperator();
@@ -77,14 +81,14 @@ public class HttpPollingOperatorTest {
     }
 
     @Test
-    public void testConstructor() {
+    void testConstructor() {
         assertEquals(ACTOR, oper.getActorName());
         assertEquals(OPERATION, oper.getName());
         assertEquals(ACTOR + "." + OPERATION, oper.getFullName());
     }
 
     @Test
-    public void testDoConfigure_testGetters() {
+    void testDoConfigure_testGetters() {
         assertTrue(oper.getCurrentConfig() instanceof HttpPollingConfig);
 
         // test invalid parameters
@@ -93,7 +97,7 @@ public class HttpPollingOperatorTest {
     }
 
     @Test
-    public void testGetClientFactory() {
+     void testGetClientFactory() {
         HttpPollingOperator oper2 = new HttpPollingOperator(ACTOR, OPERATION);
         assertNotNull(oper2.getClientFactory());
     }
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/OperationPartialTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/OperationPartialTest.java
index ae07f1f19..57dbfb141 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/OperationPartialTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/OperationPartialTest.java
@@ -23,12 +23,12 @@ package org.onap.policy.controlloop.actorserviceprovider.impl;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import ch.qos.logback.classic.Logger;
 import java.time.Instant;
@@ -53,13 +53,15 @@ import java.util.function.Consumer;
 import java.util.function.Supplier;
 import lombok.Getter;
 import lombok.Setter;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
 import org.onap.policy.common.endpoints.utils.NetLoggerUtil.EventType;
 import org.onap.policy.common.utils.coder.Coder;
@@ -79,8 +81,8 @@ import org.onap.policy.controlloop.actorserviceprovider.parameters.OperatorConfi
 import org.onap.policy.controlloop.actorserviceprovider.spi.Actor;
 import org.slf4j.LoggerFactory;
 
-@RunWith(MockitoJUnitRunner.class)
-public class OperationPartialTest {
+@ExtendWith(MockitoExtension.class)
+class OperationPartialTest {
     private static final CommInfrastructure SINK_INFRA = CommInfrastructure.NOOP;
     private static final CommInfrastructure SOURCE_INFRA = CommInfrastructure.NOOP;
     private static final int MAX_REQUESTS = 100;
@@ -136,8 +138,8 @@ public class OperationPartialTest {
     /**
      * Attaches the appender to the logger.
      */
-    @BeforeClass
-    public static void setUpBeforeClass() throws Exception {
+    @BeforeAll
+    static void setUpBeforeClass() throws Exception {
         /*
          * Attach appender to the logger.
          */
@@ -150,16 +152,16 @@ public class OperationPartialTest {
     /**
      * Stops the appender.
      */
-    @AfterClass
-    public static void tearDownAfterClass() {
+    @AfterAll
+    static void tearDownAfterClass() {
         appender.stop();
     }
 
     /**
      * Initializes the fields, including {@link #oper}.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         executor = new PseudoExecutor();
 
         params = ControlLoopOperationParams.builder().completeCallback(this::completer).requestId(REQ_ID)
@@ -180,14 +182,14 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testOperatorPartial_testGetActorName_testGetName() {
+    void testOperatorPartial_testGetActorName_testGetName() {
         assertEquals(ACTOR, oper.getActorName());
         assertEquals(OPERATION, oper.getName());
         assertEquals(ACTOR + "." + OPERATION, oper.getFullName());
     }
 
     @Test
-    public void testGetBlockingThread() throws Exception {
+     void testGetBlockingThread() throws Exception {
         CompletableFuture<Void> future = new CompletableFuture<>();
 
         // use the real executor
@@ -204,12 +206,12 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testGetPropertyNames() {
+     void testGetPropertyNames() {
         assertThat(oper.getPropertyNames()).isEqualTo(PROP_NAMES);
     }
 
     @Test
-    public void testGetProperty_testSetProperty_testGetRequiredProperty() {
+     void testGetProperty_testSetProperty_testGetRequiredProperty() {
         oper.setProperty("propertyA", "valueA");
         oper.setProperty("propertyB", "valueB");
         oper.setProperty("propertyC", 20);
@@ -226,7 +228,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testStart() {
+     void testStart() {
         verifyRun("testStart", 1, 1, OperationResult.SUCCESS);
     }
 
@@ -234,7 +236,7 @@ public class OperationPartialTest {
      * Tests start() with multiple running requests.
      */
     @Test
-    public void testStartMultiple() {
+     void testStartMultiple() {
         for (int count = 0; count < MAX_PARALLEL; ++count) {
             oper.start();
         }
@@ -251,7 +253,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testStartOperationAsync() {
+     void testStartOperationAsync() {
         oper.start();
         assertTrue(executor.runAll(MAX_REQUESTS));
 
@@ -259,7 +261,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testIsSuccess() {
+     void testIsSuccess() {
         assertFalse(oper.isSuccess(null));
 
         OperationOutcome outcome = new OperationOutcome();
@@ -269,12 +271,12 @@ public class OperationPartialTest {
 
         for (OperationResult failure : FAILURE_RESULTS) {
             outcome.setResult(failure);
-            assertFalse("testIsSuccess-" + failure, oper.isSuccess(outcome));
+            assertFalse(oper.isSuccess(outcome), "testIsSuccess-" + failure);
         }
     }
 
     @Test
-    public void testIsActorFailed() {
+     void testIsActorFailed() {
         assertFalse(oper.isActorFailed(null));
 
         OperationOutcome outcome = params.makeOutcome();
@@ -308,7 +310,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testDoOperation() {
+     void testDoOperation() {
         /*
          * Use an operation that doesn't override doOperation().
          */
@@ -322,7 +324,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testTimeout() throws Exception {
+     void testTimeout() throws Exception {
 
         // use a real executor
         params = params.toBuilder().executor(ForkJoinPool.commonPool()).build();
@@ -360,7 +362,7 @@ public class OperationPartialTest {
      * Tests retry functions, when the count is set to zero and retries are exhausted.
      */
     @Test
-    public void testSetRetryFlag_testRetryOnFailure_ZeroRetries_testStartOperationAttempt() {
+     void testSetRetryFlag_testRetryOnFailure_ZeroRetries_testStartOperationAttempt() {
         params = params.toBuilder().retry(0).build();
 
         // new params, thus need a new operation
@@ -375,7 +377,7 @@ public class OperationPartialTest {
      * Tests retry functions, when the count is null and retries are exhausted.
      */
     @Test
-    public void testSetRetryFlag_testRetryOnFailure_NullRetries() {
+     void testSetRetryFlag_testRetryOnFailure_NullRetries() {
         params = params.toBuilder().retry(null).build();
 
         // new params, thus need a new operation
@@ -390,7 +392,7 @@ public class OperationPartialTest {
      * Tests retry functions, when retries are exhausted.
      */
     @Test
-    public void testSetRetryFlag_testRetryOnFailure_RetriesExhausted() {
+     void testSetRetryFlag_testRetryOnFailure_RetriesExhausted() {
         final int maxRetries = 3;
         params = params.toBuilder().retry(maxRetries).build();
 
@@ -407,7 +409,7 @@ public class OperationPartialTest {
      * Tests retry functions, when a success follows some retries.
      */
     @Test
-    public void testSetRetryFlag_testRetryOnFailure_SuccessAfterRetries() {
+     void testSetRetryFlag_testRetryOnFailure_SuccessAfterRetries() {
         params = params.toBuilder().retry(10).build();
 
         // new params, thus need a new operation
@@ -424,7 +426,7 @@ public class OperationPartialTest {
      * Tests retry functions, when the outcome is {@code null}.
      */
     @Test
-    public void testSetRetryFlag_testRetryOnFailure_NullOutcome() {
+     void testSetRetryFlag_testRetryOnFailure_NullOutcome() {
 
         // arrange to return null from doOperation()
         oper = new MyOper() {
@@ -441,7 +443,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testSleep() throws Exception {
+     void testSleep() throws Exception {
         CompletableFuture<Void> future = oper.sleep(-1, TimeUnit.SECONDS);
         assertTrue(future.isDone());
         assertNull(future.get());
@@ -471,7 +473,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testIsSameOperation() {
+     void testIsSameOperation() {
         assertFalse(oper.isSameOperation(null));
 
         OperationOutcome outcome = params.makeOutcome();
@@ -494,7 +496,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testFromException() {
+     void testFromException() {
         // arrange to generate an exception when operation runs
         oper.setGenException(true);
 
@@ -505,7 +507,7 @@ public class OperationPartialTest {
      * Tests fromException() when there is no exception.
      */
     @Test
-    public void testFromExceptionNoExcept() {
+     void testFromExceptionNoExcept() {
         verifyRun("testFromExceptionNoExcept", 1, 1, OperationResult.SUCCESS);
     }
 
@@ -513,7 +515,7 @@ public class OperationPartialTest {
      * Tests both flavors of anyOf(), because one invokes the other.
      */
     @Test
-    public void testAnyOf() throws Exception {
+     void testAnyOf() throws Exception {
         // first task completes, others do not
         List<Supplier<CompletableFuture<OperationOutcome>>> tasks = new LinkedList<>();
 
@@ -565,7 +567,7 @@ public class OperationPartialTest {
      */
     @Test
     @SuppressWarnings("unchecked")
-    public void testAnyOfEdge() throws Exception {
+     void testAnyOfEdge() throws Exception {
         List<Supplier<CompletableFuture<OperationOutcome>>> tasks = new LinkedList<>();
 
         // zero items: check both using a list and using an array
@@ -581,7 +583,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testAllOfArray() throws Exception {
+     void testAllOfArray() throws Exception {
         final OperationOutcome outcome = params.makeOutcome();
 
         CompletableFuture<OperationOutcome> future1 = new CompletableFuture<>();
@@ -612,7 +614,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testAllOfList() throws Exception {
+     void testAllOfList() throws Exception {
         final OperationOutcome outcome = params.makeOutcome();
 
         CompletableFuture<OperationOutcome> future1 = new CompletableFuture<>();
@@ -651,7 +653,7 @@ public class OperationPartialTest {
      */
     @Test
     @SuppressWarnings("unchecked")
-    public void testAllOfEdge() throws Exception {
+     void testAllOfEdge() throws Exception {
         List<Supplier<CompletableFuture<OperationOutcome>>> tasks = new LinkedList<>();
 
         // zero items: check both using a list and using an array
@@ -667,7 +669,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testAttachFutures() throws Exception {
+     void testAttachFutures() throws Exception {
         List<Supplier<CompletableFuture<OperationOutcome>>> tasks = new LinkedList<>();
 
         // third task throws an exception during construction
@@ -690,7 +692,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testCombineOutcomes() throws Exception {
+     void testCombineOutcomes() throws Exception {
         // only one outcome
         verifyOutcomes(0, OperationResult.SUCCESS);
         verifyOutcomes(0, OperationResult.FAILURE_EXCEPTION);
@@ -729,7 +731,7 @@ public class OperationPartialTest {
      * Tests both flavors of sequence(), because one invokes the other.
      */
     @Test
-    public void testSequence() throws Exception {
+     void testSequence() throws Exception {
         final OperationOutcome outcome = params.makeOutcome();
 
         List<Supplier<CompletableFuture<OperationOutcome>>> tasks = new LinkedList<>();
@@ -770,7 +772,7 @@ public class OperationPartialTest {
      */
     @Test
     @SuppressWarnings("unchecked")
-    public void testSequenceEdge() throws Exception {
+     void testSequenceEdge() throws Exception {
         List<Supplier<CompletableFuture<OperationOutcome>>> tasks = new LinkedList<>();
 
         // zero items: check both using a list and using an array
@@ -808,7 +810,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testDetmPriority() throws CoderException {
+     void testDetmPriority() throws CoderException {
         assertEquals(1, oper.detmPriority(null));
 
         OperationOutcome outcome = params.makeOutcome();
@@ -819,7 +821,7 @@ public class OperationPartialTest {
 
         for (Entry<OperationResult, Integer> ent : map.entrySet()) {
             outcome.setResult(ent.getKey());
-            assertEquals(ent.getKey().toString(), ent.getValue().intValue(), oper.detmPriority(outcome));
+            assertEquals(ent.getValue().intValue(), oper.detmPriority(outcome), ent.getKey().toString());
         }
 
         /*
@@ -834,7 +836,7 @@ public class OperationPartialTest {
      * Tests callbackStarted() when the pipeline has already been stopped.
      */
     @Test
-    public void testCallbackStartedNotRunning() {
+     void testCallbackStartedNotRunning() {
         AtomicReference<Future<OperationOutcome>> future = new AtomicReference<>();
 
         /*
@@ -860,7 +862,7 @@ public class OperationPartialTest {
      * Tests callbackCompleted() when the pipeline has already been stopped.
      */
     @Test
-    public void testCallbackCompletedNotRunning() {
+     void testCallbackCompletedNotRunning() {
         AtomicReference<Future<OperationOutcome>> future = new AtomicReference<>();
 
         // arrange to stop the controller when the start-callback is invoked
@@ -880,7 +882,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testSetOutcomeControlLoopOperationOutcomeThrowable() {
+     void testSetOutcomeControlLoopOperationOutcomeThrowable() {
         final CompletionException timex = new CompletionException(new TimeoutException(EXPECTED_EXCEPTION));
 
         OperationOutcome outcome;
@@ -897,7 +899,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testSetOutcomeControlLoopOperationOutcomePolicyResult() {
+     void testSetOutcomeControlLoopOperationOutcomePolicyResult() {
         OperationOutcome outcome;
 
         outcome = new OperationOutcome();
@@ -912,19 +914,19 @@ public class OperationPartialTest {
         for (OperationResult result : FAILURE_RESULTS) {
             outcome = new OperationOutcome();
             oper.setOutcome(outcome, result);
-            assertEquals(result.toString(), ControlLoopOperation.FAILED_MSG, outcome.getMessage());
-            assertEquals(result.toString(), result, outcome.getResult());
+            assertEquals(ControlLoopOperation.FAILED_MSG, outcome.getMessage(), result.toString());
+            assertEquals(result, outcome.getResult(), result.toString());
         }
     }
 
     @Test
-    public void testMakeOutcome() {
+     void testMakeOutcome() {
         oper.setProperty(OperationProperties.AAI_TARGET_ENTITY, MY_TARGET_ENTITY);
         assertEquals(MY_TARGET_ENTITY, oper.makeOutcome().getTarget());
     }
 
     @Test
-    public void testIsTimeout() {
+     void testIsTimeout() {
         final TimeoutException timex = new TimeoutException(EXPECTED_EXCEPTION);
 
         assertFalse(oper.isTimeout(new IllegalStateException(EXPECTED_EXCEPTION)));
@@ -938,7 +940,7 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testLogMessage() {
+     void testLogMessage() {
         final String infraStr = SINK_INFRA.toString();
 
         // log structured data
@@ -994,20 +996,20 @@ public class OperationPartialTest {
     }
 
     @Test
-    public void testGetRetry() {
+     void testGetRetry() {
         assertEquals(0, oper.getRetry(null));
         assertEquals(10, oper.getRetry(10));
     }
 
     @Test
-    public void testGetRetryWait() {
+     void testGetRetryWait() {
         // need an operator that doesn't override the retry time
         OperationPartial oper2 = new OperationPartial(params, config, Collections.emptyList()) {};
         assertEquals(OperationPartial.DEFAULT_RETRY_WAIT_MS, oper2.getRetryWaitMs());
     }
 
     @Test
-    public void testGetTimeOutMs() {
+     void testGetTimeOutMs() {
         assertEquals(TIMEOUT * 1000, oper.getTimeoutMs(params.getTimeoutSec()));
 
         params = params.toBuilder().timeoutSec(null).build();
@@ -1080,30 +1082,30 @@ public class OperationPartialTest {
 
         manipulator.accept(future);
 
-        assertTrue(testName, executor.runAll(MAX_REQUESTS));
+        assertTrue(executor.runAll(MAX_REQUESTS), testName);
 
-        assertEquals(testName, expectedCallbacks, numStart);
-        assertEquals(testName, expectedCallbacks, numEnd);
+        assertEquals(expectedCallbacks, numStart, testName);
+        assertEquals(expectedCallbacks, numEnd, testName);
 
         if (expectedCallbacks > 0) {
-            assertNotNull(testName, opstart);
-            assertNotNull(testName, opend);
-            assertEquals(testName, expectedResult, opend.getResult());
+            assertNotNull(opstart, testName);
+            assertNotNull(opend, testName);
+            assertEquals(expectedResult, opend.getResult(), testName);
 
-            assertSame(testName, tstart, opstart.getStart());
-            assertSame(testName, tstart, opend.getStart());
+            assertSame(tstart, opstart.getStart(), testName);
+            assertSame(tstart, opend.getStart(), testName);
 
             try {
                 assertTrue(future.isDone());
-                assertEquals(testName, opend, future.get());
+                assertEquals(opend, future.get(), testName);
 
                 // "start" is never final
                 for (OperationOutcome outcome : starts) {
-                    assertFalse(testName, outcome.isFinalOutcome());
+                    assertFalse(outcome.isFinalOutcome(), testName);
                 }
 
                 // only the last "complete" is final
-                assertTrue(testName, ends.removeLast().isFinalOutcome());
+                assertTrue(ends.removeLast().isFinalOutcome(), testName);
 
                 for (OperationOutcome outcome : ends) {
                     assertFalse(outcome.isFinalOutcome());
@@ -1115,12 +1117,12 @@ public class OperationPartialTest {
 
             if (expectedOperations > 0) {
                 assertNotNull(testName, oper.getSubRequestId());
-                assertEquals(testName + " op start", oper.getSubRequestId(), opstart.getSubRequestId());
-                assertEquals(testName + " op end", oper.getSubRequestId(), opend.getSubRequestId());
+                assertEquals(oper.getSubRequestId(), opstart.getSubRequestId(), testName + " op start");
+                assertEquals(oper.getSubRequestId(), opend.getSubRequestId(), testName + " op end");
             }
         }
 
-        assertEquals(testName, expectedOperations, oper.getCount());
+        assertEquals(expectedOperations, oper.getCount(), testName);
     }
 
     /**
@@ -1142,7 +1144,7 @@ public class OperationPartialTest {
 
 
     @Getter
-    public static class MyData {
+    static class MyData {
         private String text = TEXT;
     }
 
@@ -1159,7 +1161,7 @@ public class OperationPartialTest {
         private CompletableFuture<OperationOutcome> preProc;
 
 
-        public MyOper() {
+        MyOper() {
             super(OperationPartialTest.this.params, config, PROP_NAMES);
         }
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/OperatorPartialTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/OperatorPartialTest.java
index 370426fd4..20fe209fa 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/OperatorPartialTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/OperatorPartialTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,19 +21,19 @@
 
 package org.onap.policy.controlloop.actorserviceprovider.impl;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 
 import java.util.Map;
 import java.util.TreeMap;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actorserviceprovider.Operation;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
 
-public class OperatorPartialTest {
+class OperatorPartialTest {
     private static final String ACTOR = "my-actor";
     private static final String OPERATION = "my-name";
 
@@ -41,8 +42,8 @@ public class OperatorPartialTest {
     /**
      * Initializes {@link #operator}.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         operator = new OperatorPartial(ACTOR, OPERATION) {
             @Override
             public Operation buildOperation(ControlLoopOperationParams params) {
@@ -52,14 +53,14 @@ public class OperatorPartialTest {
     }
 
     @Test
-    public void testOperatorPartial_testGetActorName_testGetName() {
+    void testOperatorPartial_testGetActorName_testGetName() {
         assertEquals(ACTOR, operator.getActorName());
         assertEquals(OPERATION, operator.getName());
         assertEquals(ACTOR + "." + OPERATION, operator.getFullName());
     }
 
     @Test
-    public void testDoStart() {
+    void testDoStart() {
         operator.configure(null);
 
         operator = spy(operator);
@@ -69,7 +70,7 @@ public class OperatorPartialTest {
     }
 
     @Test
-    public void testDoStop() {
+    void testDoStop() {
         operator.configure(null);
         operator.start();
 
@@ -80,7 +81,7 @@ public class OperatorPartialTest {
     }
 
     @Test
-    public void testDoShutdown() {
+    void testDoShutdown() {
         operator.configure(null);
         operator.start();
 
@@ -91,7 +92,7 @@ public class OperatorPartialTest {
     }
 
     @Test
-    public void testDoConfigureMapOfStringObject() {
+    void testDoConfigureMapOfStringObject() {
         operator = spy(operator);
 
         Map<String, Object> params = new TreeMap<>();
@@ -101,7 +102,7 @@ public class OperatorPartialTest {
     }
 
     @Test
-    public void testGetBlockingExecutor() {
+    void testGetBlockingExecutor() {
         assertNotNull(operator.getBlockingExecutor());
     }
 }
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/StartConfigPartialTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/StartConfigPartialTest.java
index 7a822c1d9..209cb495f 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/StartConfigPartialTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/StartConfigPartialTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,18 +23,18 @@ package org.onap.policy.controlloop.actorserviceprovider.impl;
 
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-public class StartConfigPartialTest {
+class StartConfigPartialTest {
     private static final IllegalArgumentException EXPECTED_EXCEPTION =
                     new IllegalArgumentException("expected exception");
     private static final String MY_NAME = "my-name";
@@ -46,8 +47,8 @@ public class StartConfigPartialTest {
     /**
      * Creates a config whose doXxx() methods do nothing.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         config = new StartConfigPartial<>(MY_NAME) {
             @Override
             protected void doConfigure(String parameters) {
@@ -74,17 +75,17 @@ public class StartConfigPartialTest {
     }
 
     @Test
-    public void testConfigImpl_testGetFullName() {
+    void testConfigImpl_testGetFullName() {
         assertEquals(MY_NAME, config.getFullName());
     }
 
     @Test
-    public void testIsAlive() {
+    void testIsAlive() {
         assertFalse(config.isAlive());
     }
 
     @Test
-    public void testIsConfigured_testConfigure() {
+    void testIsConfigured_testConfigure() {
         // throw an exception during doConfigure(), but should remain unconfigured
         assertFalse(config.isConfigured());
         doThrow(EXPECTED_EXCEPTION).when(config).doConfigure(PARAMSX);
@@ -114,7 +115,7 @@ public class StartConfigPartialTest {
     }
 
     @Test
-    public void testStart() {
+    void testStart() {
         assertFalse(config.isAlive());
 
         // can't start if not configured yet
@@ -147,7 +148,7 @@ public class StartConfigPartialTest {
     }
 
     @Test
-    public void testStop() {
+    void testStop() {
         config.configure(PARAMS);
 
         // ok to stop if not running, but shouldn't invoke doStop()
@@ -179,7 +180,7 @@ public class StartConfigPartialTest {
     }
 
     @Test
-    public void testShutdown() {
+    void testShutdown() {
         config.configure(PARAMS);
 
         // ok to shutdown if not running, but shouldn't invoke doShutdown()
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ActorParamsTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ActorParamsTest.java
index 0304ef3be..3999ecf74 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ActorParamsTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ActorParamsTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,23 +24,23 @@ package org.onap.policy.controlloop.actorserviceprovider.parameters;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatCode;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Map;
 import java.util.TreeMap;
 import java.util.function.Consumer;
 import java.util.function.Function;
 import lombok.Setter;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 
-public class ActorParamsTest {
+class ActorParamsTest {
 
     private static final String CONTAINER = "my-container";
 
@@ -58,8 +59,8 @@ public class ActorParamsTest {
      * Initializes {@link #operations} with two items and {@link params} with a fully
      * populated object.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         operations = new TreeMap<>();
         operations.put(PATH1, Map.of("path", URI1));
         operations.put(PATH2, Map.of("path", URI2, "text2", TEXT2B));
@@ -68,7 +69,7 @@ public class ActorParamsTest {
     }
 
     @Test
-    public void testMakeOperationParameters() {
+     void testMakeOperationParameters() {
         Function<String, Map<String, Object>> maker = params.makeOperationParameters(CONTAINER);
         assertNull(maker.apply("unknown-operation"));
 
@@ -82,7 +83,7 @@ public class ActorParamsTest {
     }
 
     @Test
-    public void testDoValidation() {
+     void testDoValidation() {
         assertThatCode(() -> params.doValidation(CONTAINER)).doesNotThrowAnyException();
 
         // invalid param
@@ -92,7 +93,7 @@ public class ActorParamsTest {
     }
 
     @Test
-    public void testValidate() {
+     void testValidate() {
         assertTrue(params.validate(CONTAINER).isValid());
 
         // only a few fields are required
@@ -108,13 +109,13 @@ public class ActorParamsTest {
 
         // original params should be valid
         ValidationResult result = params.validate(CONTAINER);
-        assertTrue(fieldName, result.isValid());
+        assertTrue(result.isValid(), fieldName);
 
         // make invalid params
         ActorParams params2 = makeActorParams();
         makeInvalid.accept(params2);
         result = params2.validate(CONTAINER);
-        assertFalse(fieldName, result.isValid());
+        assertFalse(result.isValid(), fieldName);
         assertThat(result.getResult()).contains(CONTAINER).contains(fieldName).contains(expected);
     }
 
@@ -128,7 +129,7 @@ public class ActorParamsTest {
     }
 
     @Setter
-    public static class MyParams extends ActorParams {
+    static class MyParams extends ActorParams {
         @SuppressWarnings("unused")
         private String text1;
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicActorParamsTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicActorParamsTest.java
index 769e0fca5..5c8b659fa 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicActorParamsTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicActorParamsTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,18 +22,18 @@
 package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Collections;
 import java.util.Map;
 import java.util.function.Consumer;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 
-public class BidirectionalTopicActorParamsTest {
+class BidirectionalTopicActorParamsTest {
     private static final String CONTAINER = "my-container";
 
     private static final String DFLT_SOURCE = "default-source";
@@ -58,8 +59,8 @@ public class BidirectionalTopicActorParamsTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         BidirectionalTopicParams oper1 = BidirectionalTopicParams.builder().sourceTopic(OPER1_SOURCE)
                         .sinkTopic(OPER1_SINK).timeoutSec(OPER1_TIMEOUT).build();
 
@@ -72,7 +73,7 @@ public class BidirectionalTopicActorParamsTest {
     }
 
     @Test
-    public void testValidate() {
+     void testValidate() {
         assertTrue(params.validate(CONTAINER).isValid());
 
         // only a few fields are required
@@ -97,13 +98,13 @@ public class BidirectionalTopicActorParamsTest {
 
         // original params should be valid
         ValidationResult result = params.validate(CONTAINER);
-        assertTrue(fieldName, result.isValid());
+        assertTrue(result.isValid(), fieldName);
 
         // make invalid params
         BidirectionalTopicActorParams params2 = makeBidirectionalTopicActorParams();
         makeInvalid.accept(params2);
         result = params2.validate(CONTAINER);
-        assertFalse(fieldName, result.isValid());
+        assertFalse(result.isValid(), fieldName);
         assertThat(result.getResult()).contains(CONTAINER).contains(fieldName).contains(expected);
     }
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicConfigTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicConfigTest.java
index 7b44333f9..8f833b700 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicConfigTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicConfigTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,25 +21,27 @@
 
 package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.mockito.Mockito.when;
 
 import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.Executor;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.controlloop.actorserviceprovider.topic.BidirectionalTopicHandler;
 import org.onap.policy.controlloop.actorserviceprovider.topic.BidirectionalTopicManager;
 import org.onap.policy.controlloop.actorserviceprovider.topic.Forwarder;
 import org.onap.policy.controlloop.actorserviceprovider.topic.SelectorKey;
 
-@RunWith(MockitoJUnitRunner.class)
-public class BidirectionalTopicConfigTest {
+@ExtendWith(MockitoExtension.class)
+class BidirectionalTopicConfigTest {
     private static final String MY_SINK = "my-sink";
     private static final String MY_SOURCE = "my-source";
     private static final int TIMEOUT_SEC = 10;
@@ -57,8 +60,8 @@ public class BidirectionalTopicConfigTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         List<SelectorKey> keys = Arrays.asList(new SelectorKey(""));
 
         when(topicManager.getTopicHandler(MY_SINK, MY_SOURCE)).thenReturn(topicHandler);
@@ -70,7 +73,7 @@ public class BidirectionalTopicConfigTest {
     }
 
     @Test
-    public void test() {
+     void test() {
         assertSame(executor, config.getBlockingExecutor());
         assertSame(topicHandler, config.getTopicHandler());
         assertSame(forwarder, config.getForwarder());
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicParamsTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicParamsTest.java
index 0ec0bb57c..99915ac1a 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicParamsTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/BidirectionalTopicParamsTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,17 +22,17 @@
 package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.function.Function;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.BidirectionalTopicParams.BidirectionalTopicParamsBuilder;
 
-public class BidirectionalTopicParamsTest {
+class BidirectionalTopicParamsTest {
 
     private static final String CONTAINER = "my-container";
     private static final String SINK = "my-sink";
@@ -40,13 +41,13 @@ public class BidirectionalTopicParamsTest {
 
     private BidirectionalTopicParams params;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         params = BidirectionalTopicParams.builder().sinkTopic(SINK).sourceTopic(SOURCE).timeoutSec(TIMEOUT).build();
     }
 
     @Test
-    public void testValidate() {
+     void testValidate() {
         assertTrue(params.validate(CONTAINER).isValid());
 
         testValidateField("sink", "null", bldr -> bldr.sinkTopic(null));
@@ -59,7 +60,7 @@ public class BidirectionalTopicParamsTest {
     }
 
     @Test
-    public void testBuilder_testToBuilder() {
+     void testBuilder_testToBuilder() {
         assertEquals(SINK, params.getSinkTopic());
         assertEquals(SOURCE, params.getSourceTopic());
         assertEquals(TIMEOUT, params.getTimeoutSec());
@@ -75,11 +76,11 @@ public class BidirectionalTopicParamsTest {
 
         // original params should be valid
         ValidationResult result = params.validate(CONTAINER);
-        assertTrue(fieldName, result.isValid());
+        assertTrue(result.isValid(), fieldName);
 
         // make invalid params
         result = makeInvalid.apply(params.toBuilder()).build().validate(CONTAINER);
-        assertFalse(fieldName, result.isValid());
+        assertFalse(result.isValid(), fieldName);
         assertThat(result.getResult()).contains(fieldName).contains(expected);
     }
 }
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ControlLoopOperationParamsTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ControlLoopOperationParamsTest.java
index bdf6b307a..55597611f 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ControlLoopOperationParamsTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ControlLoopOperationParamsTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,18 +23,17 @@ package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
 
 import java.util.Map;
 import java.util.TreeMap;
@@ -44,11 +44,13 @@ import java.util.concurrent.ForkJoinPool;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.Consumer;
 import java.util.function.Function;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.parameters.BeanValidationResult;
 import org.onap.policy.controlloop.actorserviceprovider.ActorService;
 import org.onap.policy.controlloop.actorserviceprovider.Operation;
@@ -57,8 +59,9 @@ import org.onap.policy.controlloop.actorserviceprovider.Operator;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams.ControlLoopOperationParamsBuilder;
 import org.onap.policy.controlloop.actorserviceprovider.spi.Actor;
 
-@RunWith(MockitoJUnitRunner.class)
-public class ControlLoopOperationParamsTest {
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class ControlLoopOperationParamsTest {
     private static final String NULL_MSG = "null";
     private static final String EXPECTED_EXCEPTION = "expected exception";
     private static final String ACTOR = "my-actor";
@@ -100,12 +103,12 @@ public class ControlLoopOperationParamsTest {
     /**
      * Initializes mocks and sets {@link #params} to a fully-loaded set of parameters.
      */
-    @Before
-    public void setUp() {
-        when(actorService.getActor(ACTOR)).thenReturn(actor);
-        when(actor.getOperator(OPERATION)).thenReturn(operator);
-        when(operator.buildOperation(any())).thenReturn(operation);
-        when(operation.start()).thenReturn(operFuture);
+    @BeforeEach
+     void setUp() {
+        Mockito.lenient().when(actorService.getActor(ACTOR)).thenReturn(actor);
+        Mockito.lenient().when(actor.getOperator(OPERATION)).thenReturn(operator);
+        Mockito.lenient().when(operator.buildOperation(any())).thenReturn(operation);
+        Mockito.lenient().when(operation.start()).thenReturn(operFuture);
 
         payload = new TreeMap<>();
 
@@ -118,26 +121,26 @@ public class ControlLoopOperationParamsTest {
     }
 
     @Test
-    public void testStart() {
+     void testStart() {
         assertThatIllegalArgumentException().isThrownBy(() -> params.toBuilder().requestId(null).build().start());
 
         assertSame(operFuture, params.start());
     }
 
     @Test
-    public void testBuild() {
+     void testBuild() {
         assertThatIllegalArgumentException().isThrownBy(() -> params.toBuilder().requestId(null).build().build());
 
         assertSame(operation, params.build());
     }
 
     @Test
-    public void testGetRequestId() {
+     void testGetRequestId() {
         assertSame(REQ_ID, params.getRequestId());
     }
 
     @Test
-    public void testMakeOutcome() {
+     void testMakeOutcome() {
         assertEquals(ACTOR, outcome.getActor());
         assertEquals(OPERATION, outcome.getOperation());
         assertNull(outcome.getStart());
@@ -148,7 +151,7 @@ public class ControlLoopOperationParamsTest {
     }
 
     @Test
-    public void testCallbackStarted() {
+     void testCallbackStarted() {
         params.callbackStarted(outcome);
         verify(starter).accept(outcome);
 
@@ -173,7 +176,7 @@ public class ControlLoopOperationParamsTest {
     }
 
     @Test
-    public void testCallbackCompleted() {
+     void testCallbackCompleted() {
         params.callbackCompleted(outcome);
         verify(completer).accept(outcome);
 
@@ -198,7 +201,7 @@ public class ControlLoopOperationParamsTest {
     }
 
     @Test
-    public void testValidateFields() {
+     void testValidateFields() {
         testValidate("actor", NULL_MSG, bldr -> bldr.actor(null));
         testValidate("actorService", NULL_MSG, bldr -> bldr.actorService(null));
         testValidate("executor", NULL_MSG, bldr -> bldr.executor(null));
@@ -226,31 +229,31 @@ public class ControlLoopOperationParamsTest {
 
         // original params should be valid
         BeanValidationResult result = params.validate();
-        assertTrue(fieldName, result.isValid());
+        assertTrue(result.isValid(), fieldName);
 
         // make invalid params
         result = makeInvalid.apply(params.toBuilder()).build().validate();
-        assertFalse(fieldName, result.isValid());
+        assertFalse(result.isValid(), fieldName);
         assertThat(result.getResult()).contains(fieldName).contains(expected);
     }
 
     @Test
-    public void testBuilder_testToBuilder() {
+     void testBuilder_testToBuilder() {
         assertEquals(params, params.toBuilder().build());
     }
 
     @Test
-    public void testGetActor() {
+     void testGetActor() {
         assertSame(ACTOR, params.getActor());
     }
 
     @Test
-    public void testGetActorService() {
+     void testGetActorService() {
         assertSame(actorService, params.getActorService());
     }
 
     @Test
-    public void testGetExecutor() {
+     void testGetExecutor() {
         assertSame(executor, params.getExecutor());
 
         // should use default when unspecified
@@ -258,12 +261,12 @@ public class ControlLoopOperationParamsTest {
     }
 
     @Test
-    public void testGetOperation() {
+     void testGetOperation() {
         assertSame(OPERATION, params.getOperation());
     }
 
     @Test
-    public void testGetPayload() {
+     void testGetPayload() {
         assertSame(payload, params.getPayload());
 
         // should be null when unspecified
@@ -271,7 +274,7 @@ public class ControlLoopOperationParamsTest {
     }
 
     @Test
-    public void testGetRetry() {
+     void testGetRetry() {
         assertSame(RETRY, params.getRetry());
 
         // should be null when unspecified
@@ -279,7 +282,7 @@ public class ControlLoopOperationParamsTest {
     }
 
     @Test
-    public void testGetTimeoutSec() {
+     void testGetTimeoutSec() {
         assertSame(TIMEOUT, params.getTimeoutSec());
 
         // should be 300 when unspecified
@@ -290,12 +293,12 @@ public class ControlLoopOperationParamsTest {
     }
 
     @Test
-    public void testGetStartCallback() {
+     void testGetStartCallback() {
         assertSame(starter, params.getStartCallback());
     }
 
     @Test
-    public void testGetCompleteCallback() {
+     void testGetCompleteCallback() {
         assertSame(completer, params.getCompleteCallback());
     }
 }
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpActorParamsTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpActorParamsTest.java
index 5812b0437..3e460bac3 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpActorParamsTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpActorParamsTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,18 +22,18 @@
 package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Map;
 import java.util.TreeMap;
 import java.util.function.Consumer;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 
-public class HttpActorParamsTest {
+class HttpActorParamsTest {
 
     private static final String CONTAINER = "my-container";
     private static final String CLIENT = "my-client";
@@ -50,8 +51,8 @@ public class HttpActorParamsTest {
      * Initializes {@link #operations} with two items and {@link params} with a fully
      * populated object.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         operations = new TreeMap<>();
         operations.put(PATH1, Map.of("path", URI1));
         operations.put(PATH2, Map.of("path", URI2));
@@ -60,7 +61,7 @@ public class HttpActorParamsTest {
     }
 
     @Test
-    public void testValidate() {
+     void testValidate() {
         assertTrue(params.validate(CONTAINER).isValid());
 
         // only a few fields are required
@@ -83,13 +84,13 @@ public class HttpActorParamsTest {
 
         // original params should be valid
         ValidationResult result = params.validate(CONTAINER);
-        assertTrue(fieldName, result.isValid());
+        assertTrue(result.isValid(), fieldName);
 
         // make invalid params
         HttpActorParams params2 = makeHttpActorParams();
         makeInvalid.accept(params2);
         result = params2.validate(CONTAINER);
-        assertFalse(fieldName, result.isValid());
+        assertFalse(result.isValid(), fieldName);
         assertThat(result.getResult()).contains(CONTAINER).contains(fieldName).contains(expected);
     }
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpConfigTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpConfigTest.java
index 181e0ba67..e43cd8c62 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpConfigTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpConfigTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,21 +21,21 @@
 
 package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.mockito.Mockito.when;
 
 import java.util.concurrent.Executor;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClient;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactory;
 
-@RunWith(MockitoJUnitRunner.class)
-public class HttpConfigTest {
+@ExtendWith(MockitoExtension.class)
+class HttpConfigTest {
     private static final String MY_CLIENT = "my-client";
     private static final String MY_PATH = "my-path";
     private static final int TIMEOUT_SEC = 10;
@@ -51,8 +52,8 @@ public class HttpConfigTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         when(factory.get(MY_CLIENT)).thenReturn(client);
 
         HttpParams params = HttpParams.builder().clientName(MY_CLIENT).path(MY_PATH).timeoutSec(TIMEOUT_SEC).build();
@@ -60,7 +61,7 @@ public class HttpConfigTest {
     }
 
     @Test
-    public void test() {
+     void test() {
         assertSame(executor, config.getBlockingExecutor());
         assertSame(client, config.getClient());
         assertEquals(MY_PATH, config.getPath());
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpParamsTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpParamsTest.java
index f4c6a2089..f0611a79b 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpParamsTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpParamsTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,17 +22,17 @@
 package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.function.Function;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams.HttpParamsBuilder;
 
-public class HttpParamsTest {
+class HttpParamsTest {
 
     private static final String CONTAINER = "my-container";
     private static final String CLIENT = "my-client";
@@ -40,13 +41,13 @@ public class HttpParamsTest {
 
     private HttpParams params;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         params = HttpParams.builder().clientName(CLIENT).path(PATH).timeoutSec(TIMEOUT).build();
     }
 
     @Test
-    public void testValidate() {
+     void testValidate() {
         assertTrue(params.validate(CONTAINER).isValid());
 
         testValidateField("clientName", "null", bldr -> bldr.clientName(null));
@@ -63,7 +64,7 @@ public class HttpParamsTest {
     }
 
     @Test
-    public void testBuilder_testToBuilder() {
+     void testBuilder_testToBuilder() {
         assertEquals(CLIENT, params.getClientName());
         assertEquals(PATH, params.getPath());
         assertEquals(TIMEOUT, params.getTimeoutSec());
@@ -76,11 +77,11 @@ public class HttpParamsTest {
 
         // original params should be valid
         ValidationResult result = params.validate(CONTAINER);
-        assertTrue(fieldName, result.isValid());
+        assertTrue(result.isValid(), fieldName);
 
         // make invalid params
         result = makeInvalid.apply(params.toBuilder()).build().validate(CONTAINER);
-        assertFalse(fieldName, result.isValid());
+        assertFalse(result.isValid(), fieldName);
         assertThat(result.getResult()).contains(fieldName).contains(expected);
     }
 }
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingActorParamsTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingActorParamsTest.java
index 3202c2e54..f59887b91 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingActorParamsTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingActorParamsTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,19 +22,19 @@
 package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Map;
 import java.util.TreeMap;
 import java.util.function.Consumer;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 
 
-public class HttpPollingActorParamsTest {
+class HttpPollingActorParamsTest {
     private static final String CONTAINER = "my-container";
     private static final String CLIENT = "my-client";
     private static final String POLL_PATH = "my-poll-path";
@@ -53,8 +54,8 @@ public class HttpPollingActorParamsTest {
      * Initializes {@link #operations} with two items and {@link params} with a fully
      * populated object.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         operations = new TreeMap<>();
         operations.put(PATH1, Map.of("path", URI1));
         operations.put(PATH2, Map.of("path", URI2));
@@ -63,7 +64,7 @@ public class HttpPollingActorParamsTest {
     }
 
     @Test
-    public void testValidate() {
+     void testValidate() {
         assertTrue(params.validate(CONTAINER).isValid());
 
         // only a few fields are required
@@ -92,13 +93,13 @@ public class HttpPollingActorParamsTest {
 
         // original params should be valid
         ValidationResult result = params.validate(CONTAINER);
-        assertTrue(fieldName, result.isValid());
+        assertTrue(result.isValid(), fieldName);
 
         // make invalid params
         HttpPollingActorParams params2 = makeHttpPollingActorParams();
         makeInvalid.accept(params2);
         result = params2.validate(CONTAINER);
-        assertFalse(fieldName, result.isValid());
+        assertFalse(result.isValid(), fieldName);
         assertThat(result.getResult()).contains(CONTAINER).contains(fieldName).contains(expected);
     }
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingConfigTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingConfigTest.java
index 65fd308fe..0fcf39ed4 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingConfigTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingConfigTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,21 +21,21 @@
 
 package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.mockito.Mockito.when;
 
 import java.util.concurrent.Executor;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.http.client.HttpClient;
 import org.onap.policy.common.endpoints.http.client.HttpClientFactory;
 
-@RunWith(MockitoJUnitRunner.class)
-public class HttpPollingConfigTest {
+@ExtendWith(MockitoExtension.class)
+class HttpPollingConfigTest {
     private static final String MY_CLIENT = "my-client";
     private static final String MY_PATH = "my-path";
     private static final String POLL_PATH = "poll-path";
@@ -55,8 +56,8 @@ public class HttpPollingConfigTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         when(factory.get(MY_CLIENT)).thenReturn(client);
 
         params = HttpPollingParams.builder().maxPolls(MAX_POLLS).pollPath(POLL_PATH).pollWaitSec(WAIT_SEC)
@@ -65,7 +66,7 @@ public class HttpPollingConfigTest {
     }
 
     @Test
-    public void test() {
+     void test() {
         assertEquals(POLL_PATH + "/", config.getPollPath());
         assertEquals(MAX_POLLS, config.getMaxPolls());
         assertEquals(WAIT_SEC, config.getPollWaitSec());
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingParamsTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingParamsTest.java
index 42a8717bd..6131dea04 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingParamsTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/HttpPollingParamsTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,17 +22,17 @@
 package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.function.Function;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpPollingParams.HttpPollingParamsBuilder;
 
-public class HttpPollingParamsTest {
+class HttpPollingParamsTest {
     private static final String CONTAINER = "my-container";
     private static final String CLIENT = "my-client";
     private static final String PATH = "my-path";
@@ -42,14 +43,14 @@ public class HttpPollingParamsTest {
 
     private HttpPollingParams params;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         params = HttpPollingParams.builder().pollPath(POLL_PATH).maxPolls(MAX_POLLS).pollWaitSec(POLL_WAIT_SEC)
                         .clientName(CLIENT).path(PATH).timeoutSec(TIMEOUT).build();
     }
 
     @Test
-    public void testValidate() {
+     void testValidate() {
         assertTrue(params.validate(CONTAINER).isValid());
 
         testValidateField("pollPath", "null", bldr -> bldr.pollPath(null));
@@ -66,7 +67,7 @@ public class HttpPollingParamsTest {
     }
 
     @Test
-    public void testBuilder_testToBuilder() {
+     void testBuilder_testToBuilder() {
         assertEquals(CLIENT, params.getClientName());
 
         assertEquals(POLL_PATH, params.getPollPath());
@@ -81,11 +82,11 @@ public class HttpPollingParamsTest {
 
         // original params should be valid
         ValidationResult result = params.validate(CONTAINER);
-        assertTrue(fieldName, result.isValid());
+        assertTrue(result.isValid(), fieldName);
 
         // make invalid params
         result = makeInvalid.apply(params.toBuilder()).build().validate(CONTAINER);
-        assertFalse(fieldName, result.isValid());
+        assertFalse(result.isValid(), fieldName);
         assertThat(result.getResult()).contains(fieldName).contains(expected);
     }
 }
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ParameterValidationRuntimeExceptionTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ParameterValidationRuntimeExceptionTest.java
index 328e4facb..dca27fb15 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ParameterValidationRuntimeExceptionTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/parameters/ParameterValidationRuntimeExceptionTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,44 +21,44 @@
 
 package org.onap.policy.controlloop.actorserviceprovider.parameters;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.parameters.ObjectValidationResult;
 import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.common.parameters.ValidationStatus;
 
-public class ParameterValidationRuntimeExceptionTest {
+class ParameterValidationRuntimeExceptionTest {
 
     private static final String THE_MESSAGE = "the message";
     private static final IllegalStateException EXPECTED_EXCEPTION = new IllegalStateException("expected exception");
 
     private ValidationResult result;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+     void setUp() {
         result = new ObjectValidationResult("param", null, ValidationStatus.INVALID, "null");
     }
 
     @Test
-    public void testParameterValidationExceptionValidationResult() {
+     void testParameterValidationExceptionValidationResult() {
         ParameterValidationRuntimeException ex = new ParameterValidationRuntimeException(result);
         assertSame(result, ex.getResult());
         assertNull(ex.getMessage());
     }
 
     @Test
-    public void testParameterValidationExceptionValidationResultString() {
+     void testParameterValidationExceptionValidationResultString() {
         ParameterValidationRuntimeException ex = new ParameterValidationRuntimeException(THE_MESSAGE, result);
         assertSame(result, ex.getResult());
         assertEquals(THE_MESSAGE, ex.getMessage());
     }
 
     @Test
-    public void testParameterValidationExceptionValidationResultThrowable() {
+     void testParameterValidationExceptionValidationResultThrowable() {
         ParameterValidationRuntimeException ex = new ParameterValidationRuntimeException(EXPECTED_EXCEPTION, result);
         assertSame(result, ex.getResult());
         assertEquals(EXPECTED_EXCEPTION.toString(), ex.getMessage());
@@ -65,7 +66,7 @@ public class ParameterValidationRuntimeExceptionTest {
     }
 
     @Test
-    public void testParameterValidationExceptionValidationResultStringThrowable() {
+     void testParameterValidationExceptionValidationResultStringThrowable() {
         ParameterValidationRuntimeException ex =
                 new ParameterValidationRuntimeException(THE_MESSAGE, EXPECTED_EXCEPTION, result);
         assertSame(result, ex.getResult());
@@ -74,7 +75,7 @@ public class ParameterValidationRuntimeExceptionTest {
     }
 
     @Test
-    public void testGetResult() {
+     void testGetResult() {
         ParameterValidationRuntimeException ex = new ParameterValidationRuntimeException(result);
         assertSame(result, ex.getResult());
     }
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/FutureManagerTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/FutureManagerTest.java
index eff3dbb18..f97ff9ac1 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/FutureManagerTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/FutureManagerTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,22 +21,24 @@
 
 package org.onap.policy.controlloop.actorserviceprovider.pipeline;
 
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 import java.util.concurrent.Future;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 
-@RunWith(MockitoJUnitRunner.class)
-public class FutureManagerTest {
+@ExtendWith(MockitoExtension.class)
+class FutureManagerTest {
 
     private static final String EXPECTED_EXCEPTION = "expected exception";
 
@@ -53,13 +56,13 @@ public class FutureManagerTest {
     /**
      * Initializes fields, including {@link #mgr}.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         mgr = new FutureManager();
     }
 
     @Test
-    public void testStop() {
+     void testStop() {
         mgr.add(future1);
         mgr.add(future2);
         mgr.add(future3);
@@ -96,7 +99,7 @@ public class FutureManagerTest {
     }
 
     @Test
-    public void testAdd() {
+     void testAdd() {
         // still running - this should not be invoked
         mgr.add(future1);
         verify(future1, never()).cancel(anyBoolean());
@@ -119,7 +122,7 @@ public class FutureManagerTest {
     }
 
     @Test
-    public void testRemove() {
+     void testRemove() {
         mgr.add(future1);
         mgr.add(future2);
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/ListenerManagerTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/ListenerManagerTest.java
index bbd82cbd1..882a8b0f8 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/ListenerManagerTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/ListenerManagerTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,20 +21,20 @@
 
 package org.onap.policy.controlloop.actorserviceprovider.pipeline;
 
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 
-@RunWith(MockitoJUnitRunner.class)
-public class ListenerManagerTest {
+@ExtendWith(MockitoExtension.class)
+class ListenerManagerTest {
 
     private static final String EXPECTED_EXCEPTION = "expected exception";
 
@@ -51,13 +52,13 @@ public class ListenerManagerTest {
     /**
      * Initializes fields, including {@link #mgr}.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         mgr = new ListenerManager();
     }
 
     @Test
-    public void testStop_testIsRunning() {
+     void testStop_testIsRunning() {
         mgr.add(runnable1);
         mgr.add(runnable2);
         mgr.add(runnable3);
@@ -92,7 +93,7 @@ public class ListenerManagerTest {
     }
 
     @Test
-    public void testAdd() {
+     void testAdd() {
         // still running - this should not be invoked
         mgr.add(runnable1);
         verify(runnable1, never()).run();
@@ -111,7 +112,7 @@ public class ListenerManagerTest {
     }
 
     @Test
-    public void testRemove() {
+     void testRemove() {
         mgr.add(runnable1);
         mgr.add(runnable2);
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/PipelineControllerFutureTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/PipelineControllerFutureTest.java
index 44c9e20af..c0d3a0df8 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/PipelineControllerFutureTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/PipelineControllerFutureTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,12 +22,12 @@
 package org.onap.policy.controlloop.actorserviceprovider.pipeline;
 
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNotSame;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.spy;
@@ -41,15 +42,15 @@ import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicReference;
 import java.util.function.BiConsumer;
 import java.util.function.Function;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 
-@RunWith(MockitoJUnitRunner.class)
-public class PipelineControllerFutureTest {
+@ExtendWith(MockitoExtension.class)
+class PipelineControllerFutureTest {
     private static final IllegalStateException EXPECTED_EXCEPTION = new IllegalStateException("expected exception");
     private static final String TEXT = "some text";
 
@@ -77,8 +78,8 @@ public class PipelineControllerFutureTest {
      * Initializes fields, including {@link #controller}. Adds all runners and futures to
      * the controller.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         compFuture = spy(new CompletableFuture<>());
 
         controller = new PipelineControllerFuture<>();
@@ -90,7 +91,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testCancel_testAddFutureOfFBoolean_testAddRunnable__testIsRunning() {
+     void testCancel_testAddFutureOfFBoolean_testAddRunnable__testIsRunning() {
         assertTrue(controller.isRunning());
 
         assertTrue(controller.cancel(false));
@@ -110,7 +111,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testCompleteT() throws Exception {
+     void testCompleteT() throws Exception {
         assertTrue(controller.complete(TEXT));
         assertEquals(TEXT, controller.get());
 
@@ -121,7 +122,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testCompleteExceptionallyThrowable() {
+     void testCompleteExceptionallyThrowable() {
         assertTrue(controller.completeExceptionally(EXPECTED_EXCEPTION));
         assertThatThrownBy(() -> controller.get()).hasCause(EXPECTED_EXCEPTION);
 
@@ -132,7 +133,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testCompleteAsyncSupplierOfQextendsTExecutor() throws Exception {
+     void testCompleteAsyncSupplierOfQextendsTExecutor() throws Exception {
         CompletableFuture<String> future = controller.completeAsync(() -> TEXT, executor);
 
         // haven't stopped anything yet
@@ -156,7 +157,7 @@ public class PipelineControllerFutureTest {
      * Tests completeAsync(executor) when canceled before execution.
      */
     @Test
-    public void testCompleteAsyncSupplierOfQextendsTExecutorCanceled() throws Exception {
+     void testCompleteAsyncSupplierOfQextendsTExecutorCanceled() throws Exception {
         CompletableFuture<String> future = controller.completeAsync(() -> TEXT, executor);
 
         assertTrue(future.cancel(false));
@@ -169,7 +170,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testCompleteAsyncSupplierOfQextendsT() throws Exception {
+     void testCompleteAsyncSupplierOfQextendsT() throws Exception {
         CompletableFuture<String> future = controller.completeAsync(() -> TEXT);
         assertEquals(TEXT, future.get());
 
@@ -180,7 +181,7 @@ public class PipelineControllerFutureTest {
      * Tests completeAsync() when canceled.
      */
     @Test
-    public void testCompleteAsyncSupplierOfQextendsTCanceled() throws Exception {
+     void testCompleteAsyncSupplierOfQextendsTCanceled() throws Exception {
         CountDownLatch canceled = new CountDownLatch(1);
 
         // run async, but await until canceled
@@ -207,7 +208,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testCompleteOnTimeoutTLongTimeUnit() throws Exception {
+     void testCompleteOnTimeoutTLongTimeUnit() throws Exception {
         CountDownLatch stopped = new CountDownLatch(1);
         controller.add(() -> stopped.countDown());
 
@@ -226,7 +227,7 @@ public class PipelineControllerFutureTest {
      * Tests completeOnTimeout() when completed before the timeout.
      */
     @Test
-    public void testCompleteOnTimeoutTLongTimeUnitNoTimeout() throws Exception {
+     void testCompleteOnTimeoutTLongTimeUnitNoTimeout() throws Exception {
         CompletableFuture<String> future = controller.completeOnTimeout("timed out", 5, TimeUnit.SECONDS);
         controller.complete(TEXT);
 
@@ -239,7 +240,7 @@ public class PipelineControllerFutureTest {
      * Tests completeOnTimeout() when canceled before the timeout.
      */
     @Test
-    public void testCompleteOnTimeoutTLongTimeUnitCanceled() {
+     void testCompleteOnTimeoutTLongTimeUnitCanceled() {
         CompletableFuture<String> future = controller.completeOnTimeout(TEXT, 5, TimeUnit.SECONDS);
         assertTrue(future.cancel(true));
 
@@ -249,7 +250,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testNewIncompleteFuture() {
+     void testNewIncompleteFuture() {
         PipelineControllerFuture<String> future = controller.newIncompleteFuture();
         assertNotNull(future);
         assertTrue(future instanceof PipelineControllerFuture);
@@ -258,7 +259,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testDelayedComplete() throws Exception {
+     void testDelayedComplete() throws Exception {
         controller.add(runnable1);
 
         BiConsumer<String, Throwable> stopper = controller.delayedComplete();
@@ -287,7 +288,7 @@ public class PipelineControllerFutureTest {
      * Tests delayedComplete() when an exception is generated.
      */
     @Test
-    public void testDelayedCompleteWithException() throws Exception {
+     void testDelayedCompleteWithException() throws Exception {
         controller.add(runnable1);
 
         BiConsumer<String, Throwable> stopper = controller.delayedComplete();
@@ -313,7 +314,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testDelayedRemoveFutureOfF() throws Exception {
+     void testDelayedRemoveFutureOfF() throws Exception {
         BiConsumer<String, Throwable> remover = controller.delayedRemove(future1);
 
         remover.accept(TEXT, EXPECTED_EXCEPTION);
@@ -330,7 +331,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testDelayedRemoveRunnable() throws Exception {
+     void testDelayedRemoveRunnable() throws Exception {
         BiConsumer<String, Throwable> remover = controller.delayedRemove(runnable1);
 
         remover.accept(TEXT, EXPECTED_EXCEPTION);
@@ -347,7 +348,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testRemoveFutureOfF_testRemoveRunnable() {
+     void testRemoveFutureOfF_testRemoveRunnable() {
         controller.remove(runnable2);
         controller.remove(future1);
 
@@ -363,7 +364,7 @@ public class PipelineControllerFutureTest {
      * Tests both wrap() methods.
      */
     @Test
-    public void testWrap() throws Exception {
+     void testWrap() throws Exception {
         controller = spy(controller);
 
         CompletableFuture<String> future = controller.wrap(compFuture);
@@ -379,7 +380,7 @@ public class PipelineControllerFutureTest {
      * Tests wrap(), when the controller is not running.
      */
     @Test
-    public void testWrapNotRunning() throws Exception {
+     void testWrapNotRunning() throws Exception {
         controller.cancel(false);
         controller = spy(controller);
 
@@ -394,7 +395,7 @@ public class PipelineControllerFutureTest {
      * Tests wrap(), when the future throws an exception.
      */
     @Test
-    public void testWrapException() throws Exception {
+     void testWrapException() throws Exception {
         controller = spy(controller);
 
         CompletableFuture<String> future = controller.wrap(compFuture);
@@ -407,7 +408,7 @@ public class PipelineControllerFutureTest {
     }
 
     @Test
-    public void testWrapFunction() throws Exception {
+     void testWrapFunction() throws Exception {
 
         Function<String, CompletableFuture<String>> func = controller.wrap(input -> {
             compFuture.complete(input);
@@ -427,7 +428,7 @@ public class PipelineControllerFutureTest {
      * Tests wrap(Function) when the controller is canceled after the future is added.
      */
     @Test
-    public void testWrapFunctionCancel() throws Exception {
+     void testWrapFunctionCancel() throws Exception {
         Function<String, CompletableFuture<String>> func = controller.wrap(input -> compFuture);
 
         CompletableFuture<String> future = func.apply(TEXT);
@@ -445,7 +446,7 @@ public class PipelineControllerFutureTest {
      * Tests wrap(Function) when the controller is not running.
      */
     @Test
-    public void testWrapFunctionNotRunning() {
+     void testWrapFunctionNotRunning() {
         AtomicReference<String> value = new AtomicReference<>();
 
         Function<String, CompletableFuture<String>> func = controller.wrap(input -> {
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/PipelineUtilTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/PipelineUtilTest.java
index fbcacbf30..aef170ba7 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/PipelineUtilTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/pipeline/PipelineUtilTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,13 +23,13 @@ package org.onap.policy.controlloop.actorserviceprovider.pipeline;
 
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
 
-public class PipelineUtilTest {
+class PipelineUtilTest {
 
     @Test
-    public void testPipelineUtil() {
+    void testPipelineUtil() {
         ControlLoopOperationParams params = ControlLoopOperationParams.builder().build();
         PipelineUtil util = new PipelineUtil(params);
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/BidirectionalTopicHandlerTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/BidirectionalTopicHandlerTest.java
index f96fc0fdc..862e6c49d 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/BidirectionalTopicHandlerTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/BidirectionalTopicHandlerTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,28 +22,30 @@
 package org.onap.policy.controlloop.actorserviceprovider.topic;
 
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 import java.util.Arrays;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
 import org.onap.policy.common.endpoints.event.comm.TopicEndpoint;
 import org.onap.policy.common.endpoints.event.comm.TopicSink;
 import org.onap.policy.common.endpoints.event.comm.TopicSource;
 import org.onap.policy.common.endpoints.event.comm.client.BidirectionalTopicClientException;
 
-@RunWith(MockitoJUnitRunner.class)
-public class BidirectionalTopicHandlerTest {
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class BidirectionalTopicHandlerTest {
     private static final String UNKNOWN = "unknown";
     private static final String MY_SOURCE = "my-source";
     private static final String MY_SINK = "my-sink";
@@ -64,8 +67,8 @@ public class BidirectionalTopicHandlerTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() throws BidirectionalTopicClientException {
+    @BeforeEach
+    void setUp() throws BidirectionalTopicClientException {
         when(mgr.getTopicSinks(MY_SINK)).thenReturn(Arrays.asList(publisher));
         when(mgr.getTopicSources(Arrays.asList(MY_SOURCE))).thenReturn(Arrays.asList(subscriber));
 
@@ -77,7 +80,7 @@ public class BidirectionalTopicHandlerTest {
     }
 
     @Test
-    public void testBidirectionalTopicHandler_testGetSource_testGetTarget() {
+    void testBidirectionalTopicHandler_testGetSource_testGetTarget() {
         assertEquals(MY_SOURCE, handler.getSourceTopic());
         assertEquals(MY_SINK, handler.getSinkTopic());
 
@@ -96,24 +99,24 @@ public class BidirectionalTopicHandlerTest {
     }
 
     @Test
-    public void testShutdown() {
+    void testShutdown() {
         handler.shutdown();
         verify(subscriber).unregister(any());
     }
 
     @Test
-    public void testStart() {
+     void testStart() {
         verify(subscriber).register(any());
     }
 
     @Test
-    public void testStop() {
+     void testStop() {
         handler.stop();
         verify(subscriber).unregister(any());
     }
 
     @Test
-    public void testAddForwarder() {
+     void testAddForwarder() {
         // array form
         Forwarder forwarder = handler.addForwarder(new SelectorKey(KEY1), new SelectorKey(KEY2));
         assertNotNull(forwarder);
@@ -123,7 +126,7 @@ public class BidirectionalTopicHandlerTest {
     }
 
     @Test
-    public void testGetTopicEndpointManager() {
+     void testGetTopicEndpointManager() {
         // setting "mgr" to null should cause it to use the superclass' method
         mgr = null;
         assertNotNull(handler.getTopicEndpointManager());
@@ -131,7 +134,7 @@ public class BidirectionalTopicHandlerTest {
 
 
     private class MyTopicHandler extends BidirectionalTopicHandler {
-        public MyTopicHandler(String sinkTopic, String sourceTopic) throws BidirectionalTopicClientException {
+        MyTopicHandler(String sinkTopic, String sourceTopic) throws BidirectionalTopicClientException {
             super(sinkTopic, sourceTopic);
         }
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/ForwarderTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/ForwarderTest.java
index 3b368e225..e050416f5 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/ForwarderTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/ForwarderTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,16 +31,19 @@ import static org.mockito.Mockito.verify;
 import java.util.Arrays;
 import java.util.Map;
 import java.util.function.BiConsumer;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.utils.coder.StandardCoderObject;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 
-@RunWith(MockitoJUnitRunner.class)
-public class ForwarderTest {
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class ForwarderTest {
     private static final String TEXT = "some text";
 
     private static final String KEY1 = "requestId";
@@ -75,8 +79,8 @@ public class ForwarderTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         forwarder = new Forwarder(Arrays.asList(new SelectorKey(KEY1), new SelectorKey(KEY2, SUBKEY)));
 
         forwarder.register(Arrays.asList(VALUEA_REQID, VALUEA_SUBREQID), listener1);
@@ -86,7 +90,7 @@ public class ForwarderTest {
     }
 
     @Test
-    public void testRegister() {
+    void testRegister() {
         // key size mismatches
         assertThatIllegalArgumentException().isThrownBy(() -> forwarder.register(Arrays.asList(), listener1))
                         .withMessage("key/value mismatch");
@@ -96,7 +100,7 @@ public class ForwarderTest {
     }
 
     @Test
-    public void testUnregister() {
+    void testUnregister() {
         // remove listener1b
         forwarder.unregister(Arrays.asList(VALUEA_REQID, VALUEA_SUBREQID), listener1b);
 
@@ -121,7 +125,7 @@ public class ForwarderTest {
     }
 
     @Test
-    public void testOnMessage() {
+     void testOnMessage() {
         StandardCoderObject sco = makeMessage(Map.of(KEY1, VALUEA_REQID, KEY2, Map.of(SUBKEY, VALUEA_SUBREQID)));
         forwarder.onMessage(TEXT, sco);
 
@@ -166,7 +170,7 @@ public class ForwarderTest {
      * Tests onMessage() when listener1 throws an exception.
      */
     @Test
-    public void testOnMessageListenerException1() {
+     void testOnMessageListenerException1() {
         doThrow(new IllegalStateException("expected exception")).when(listener1).accept(any(), any());
 
         StandardCoderObject sco = makeMessage(Map.of(KEY1, VALUEA_REQID, KEY2, Map.of(SUBKEY, VALUEA_SUBREQID)));
@@ -179,7 +183,7 @@ public class ForwarderTest {
      * Tests onMessage() when listener1b throws an exception.
      */
     @Test
-    public void testOnMessageListenerException1b() {
+     void testOnMessageListenerException1b() {
         doThrow(new IllegalStateException("expected exception")).when(listener1b).accept(any(), any());
 
         StandardCoderObject sco = makeMessage(Map.of(KEY1, VALUEA_REQID, KEY2, Map.of(SUBKEY, VALUEA_SUBREQID)));
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/SelectorKeyTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/SelectorKeyTest.java
index 5ffcbf7dc..dd39a03c6 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/SelectorKeyTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/SelectorKeyTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,34 +21,34 @@
 
 package org.onap.policy.controlloop.actorserviceprovider.topic;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 import java.util.Map;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.Setter;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.onap.policy.common.utils.coder.StandardCoderObject;
 import org.onap.policy.controlloop.actorserviceprovider.Util;
 
-public class SelectorKeyTest {
+class SelectorKeyTest {
     private static final String FIELD1 = "map";
     private static final String FIELD2 = "abc";
     private static final String FIELDX = "abd";
 
     private SelectorKey key;
 
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         key = new SelectorKey(FIELD1, FIELD2);
     }
 
     @Test
-    public void testHashCode_testEquals() {
+    void testHashCode_testEquals() {
         SelectorKey key2 = new SelectorKey(FIELD1, FIELD2);
         assertEquals(key, key2);
         assertEquals(key.hashCode(), key2.hashCode());
@@ -64,7 +65,7 @@ public class SelectorKeyTest {
     }
 
     @Test
-    public void testExtractField() {
+    void testExtractField() {
         Map<String, Object> map = Map.of("hello", "world", FIELD1, Map.of("another", "", FIELD2, "value B"));
         StandardCoderObject sco = Util.translate("", map, StandardCoderObject.class);
 
@@ -84,7 +85,7 @@ public class SelectorKeyTest {
     }
 
     @Test
-    public void testToString() {
+    void testToString() {
         assertEquals("[map, abc]", key.toString());
     }
 
diff --git a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/TopicListenerImplTest.java b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/TopicListenerImplTest.java
index 9e3b476e9..3044a1e44 100644
--- a/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/TopicListenerImplTest.java
+++ b/models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/TopicListenerImplTest.java
@@ -3,6 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,9 +21,9 @@
 
 package org.onap.policy.controlloop.actorserviceprovider.topic;
 
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNotSame;
-import static org.junit.Assert.assertSame;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.never;
@@ -31,18 +32,20 @@ import static org.mockito.Mockito.verify;
 import java.util.Arrays;
 import java.util.Map;
 import java.util.function.BiConsumer;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
 import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.common.utils.coder.StandardCoder;
 import org.onap.policy.common.utils.coder.StandardCoderObject;
 
-@RunWith(MockitoJUnitRunner.class)
-public class TopicListenerImplTest {
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class TopicListenerImplTest {
     private static final StandardCoder coder = new StandardCoder();
     private static final CommInfrastructure INFRA = CommInfrastructure.NOOP;
     private static final String MY_TOPIC = "my-topic";
@@ -72,8 +75,8 @@ public class TopicListenerImplTest {
     /**
      * Sets up.
      */
-    @Before
-    public void setUp() {
+    @BeforeEach
+    void setUp() {
         topic = new TopicListenerImpl();
 
         forwarder1 = topic.addForwarder(new SelectorKey(KEY1));
@@ -89,7 +92,7 @@ public class TopicListenerImplTest {
     }
 
     @Test
-    public void testShutdown() {
+    void testShutdown() {
         // shut it down, which should clear all forwarders
         topic.shutdown();
 
@@ -103,13 +106,13 @@ public class TopicListenerImplTest {
     }
 
     @Test
-    public void testAddForwarder() {
+     void testAddForwarder() {
         assertSame(forwarder1, topic.addForwarder(new SelectorKey(KEY1)));
         assertSame(forwarder2, topic.addForwarder(new SelectorKey(KEY1), new SelectorKey(KEY2, SUBKEY)));
     }
 
     @Test
-    public void testOnTopicEvent() {
+     void testOnTopicEvent() {
         /*
          * send a message that should go to listener1 on forwarder1 and listener2 on
          * forwarder2