Replace try/catch blocks with assertj - apex-pdp

Replaced try/catch blocks in apex-pdp with assertj assertions

Issue-ID: POLICY-2451
Change-Id: I83375b9e0f38d399b84bb68ce5d441e1cec73ef5
Signed-off-by: waynedunican <wayne.dunican@est.tech>

4 files changed, 117 insertions, 381 deletions

diff --git a/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/ApexEditorStartupTest.java b/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/ApexEditorStartupTest.java
index fdf1e804a..4d6c93222 100644
--- a/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/ApexEditorStartupTest.java
+++ b/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/ApexEditorStartupTest.java
@@ -21,6 +21,7 @@
 
 package org.onap.policy.apex.client.editor.rest;
 
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.awaitility.Awaitility.await;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
@@ -70,14 +71,9 @@ public class ApexEditorStartupTest {
     public void testBadArg0() throws IOException, InterruptedException {
         final String[] args = new String[] { "12321" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getLocalizedMessage().startsWith(
-                    "Apex Editor REST endpoint (ApexEditorMain: Config=[null], State=STOPPED) parameter error,"
-                    + " too many command line arguments specified : [12321]"));
-        }
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("Apex Editor REST endpoint (ApexEditorMain: Config=[null], State=STOPPED)"
+                + " parameter error, too many command line arguments specified : [12321]");
     }
 
     /**
@@ -90,14 +86,9 @@ public class ApexEditorStartupTest {
     public void testBadArg1() throws IOException, InterruptedException {
         final String[] args = new String[] { "12321 12322 12323" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getLocalizedMessage().startsWith(
-                    "Apex Editor REST endpoint (ApexEditorMain: Config=[null], State=STOPPED) parameter error,"
-                    + " too many command line arguments specified : [12321 12322 12323]"));
-        }
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("Apex Editor REST endpoint (ApexEditorMain: Config=[null], State=STOPPED)"
+                    + " parameter error, too many command line arguments specified : [12321 12322 12323]");
     }
 
     /**
@@ -110,14 +101,9 @@ public class ApexEditorStartupTest {
     public void testBadArg2() throws IOException, InterruptedException {
         final String[] args = new String[] { "-z" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getLocalizedMessage().startsWith(
-                    "Apex Editor REST endpoint (ApexEditorMain: Config=[null], State=STOPPED) parameter error,"
-                    + " invalid command line arguments specified : Unrecognized option: -z"));
-        }
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("Apex Editor REST endpoint (ApexEditorMain: Config=[null], State=STOPPED)"
+                    + " parameter error, invalid command line arguments specified : Unrecognized option: -z");
     }
 
     /**
@@ -130,14 +116,9 @@ public class ApexEditorStartupTest {
     public void testBadArg3() throws IOException, InterruptedException {
         final String[] args = new String[] { "--hello" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getLocalizedMessage().startsWith(
-                    "Apex Editor REST endpoint (ApexEditorMain: Config=[null], State=STOPPED) parameter error,"
-                    + " invalid command line arguments specified : Unrecognized option: --hello"));
-        }
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("Apex Editor REST endpoint (ApexEditorMain: Config=[null], State=STOPPED)"
+                    + " parameter error, invalid command line arguments specified : Unrecognized option: --hello");
     }
 
 
@@ -151,16 +132,11 @@ public class ApexEditorStartupTest {
     public void testBadArg4() throws IOException, InterruptedException {
         final String[] args = new String[] { "-l", "+++++" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getLocalizedMessage()
-                    .startsWith("Apex Editor REST endpoint (ApexEditorMain: "
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("Apex Editor REST endpoint (ApexEditorMain: "
                             + "Config=[ApexEditorParameters: URI=http://+++++:18989/apexservices/, TTL=-1sec], "
                             + "State=STOPPED) parameters invalid, listen address is not valid. "
-                            + "Illegal character in hostname at index 7: http://+++++:18989/apexservices/"));
-        }
+                            + "Illegal character in hostname at index 7: http://+++++:18989/apexservices/");
     }
 
     /**
@@ -173,13 +149,8 @@ public class ApexEditorStartupTest {
     public void testHelp0() throws IOException, InterruptedException {
         final String[] args = new String[] { "--help" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getMessage()
-                    .startsWith("usage: org.onap.policy.apex.client.editor.rest.ApexEditorMain [options...]"));
-        }
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("usage: org.onap.policy.apex.client.editor.rest.ApexEditorMain [options...]");
     }
 
     /**
@@ -192,13 +163,8 @@ public class ApexEditorStartupTest {
     public void testHelp1() throws IOException, InterruptedException {
         final String[] args = new String[] { "-h" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getMessage()
-                    .startsWith("usage: org.onap.policy.apex.client.editor.rest.ApexEditorMain [options...]"));
-        }
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("usage: org.onap.policy.apex.client.editor.rest.ApexEditorMain [options...]");
     }
 
     /**
@@ -258,14 +224,9 @@ public class ApexEditorStartupTest {
     public void testPortArgSpace() throws IOException, InterruptedException {
         final String[] args = new String[] { "-p 12321" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getMessage().startsWith(
-                    "Apex Editor REST endpoint (ApexEditorMain: Config=[null], State=STOPPED) parameter error,"
-                    + " error parsing argument \"port\" :For input string: \" 12321\""));
-        }
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("Apex Editor REST endpoint (ApexEditorMain: Config=[null], State=STOPPED)"
+                    + " parameter error, error parsing argument \"port\" :For input string: \" 12321\"");
     }
 
     /**
@@ -278,15 +239,10 @@ public class ApexEditorStartupTest {
     public void testBadPortArgs0() throws IOException, InterruptedException {
         final String[] args = new String[] { "-p0" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getMessage()
-                    .startsWith("Apex Editor REST endpoint (ApexEditorMain: "
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("Apex Editor REST endpoint (ApexEditorMain: "
                             + "Config=[ApexEditorParameters: URI=http://localhost:0/apexservices/, TTL=-1sec], "
-                            + "State=STOPPED) parameters invalid, port must be between 1024 and 65535"));
-        }
+                            + "State=STOPPED) parameters invalid, port must be between 1024 and 65535");
     }
 
     /**
@@ -299,15 +255,10 @@ public class ApexEditorStartupTest {
     public void testBadPortArgs1023() throws IOException, InterruptedException {
         final String[] args = new String[] { "-p1023" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getMessage()
-                    .startsWith("Apex Editor REST endpoint (ApexEditorMain: "
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("Apex Editor REST endpoint (ApexEditorMain: "
                             + "Config=[ApexEditorParameters: URI=http://localhost:1023/apexservices/, TTL=-1sec], "
-                            + "State=STOPPED) parameters invalid, port must be between 1024 and 65535"));
-        }
+                            + "State=STOPPED) parameters invalid, port must be between 1024 and 65535");
     }
 
     /**
@@ -320,15 +271,10 @@ public class ApexEditorStartupTest {
     public void testBadPortArgs65536() throws IOException, InterruptedException {
         final String[] args = new String[] { "-p65536" };
 
-        try {
-            runEditor(args);
-            fail("test should throw an exception here");
-        } catch (final Exception e) {
-            assertTrue(e.getMessage()
-                    .startsWith("Apex Editor REST endpoint (ApexEditorMain: "
+        assertThatThrownBy(() -> runEditor(args)).isInstanceOf(ApexEditorParameterException.class)
+            .hasMessageContaining("Apex Editor REST endpoint (ApexEditorMain: "
                             + "Config=[ApexEditorParameters: URI=http://localhost:65536/apexservices/, TTL=-1sec], "
-                            + "State=STOPPED) parameters invalid, port must be between 1024 and 65535"));
-        }
+                            + "State=STOPPED) parameters invalid, port must be between 1024 and 65535");
     }
 
     /**
diff --git a/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/handling/ApexEditorRestResourceTest.java b/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/handling/ApexEditorRestResourceTest.java
index 642628f97..ace427052 100644
--- a/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/handling/ApexEditorRestResourceTest.java
+++ b/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/handling/ApexEditorRestResourceTest.java
@@ -21,6 +21,7 @@
 
 package org.onap.policy.apex.client.editor.rest.handling;
 
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 
@@ -60,11 +61,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
 
         final int corruptSessionId = ApexEditorRestResource.createCorruptSession();
 
-        try {
-            target("editor/" + corruptSessionId + "/Model/Analyse").request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Model/Analyse").request().get(ApexApiResult.class);
 
         result = target("editor/" + sessionId + "/Model/Analyse").request().get(ApexApiResult.class);
         assertEquals(Result.SUCCESS, result.getResult());
@@ -73,11 +70,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/12345/Model/Analyse").request().get(ApexApiResult.class);
         assertEquals(Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Model/Validate").request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Model/Validate").request().get(ApexApiResult.class);
 
         result = target("editor/" + sessionId + "/Model/Validate").request().get(ApexApiResult.class);
         assertEquals(Result.FAILED, result.getResult());
@@ -99,11 +92,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/Model/Create").request().post(csEntity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Model/Create").request().post(csEntity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Model/Create").request().post(csEntity, ApexApiResult.class);
 
         result = target("editor/-12345/Model/Update").request().put(csEntity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
@@ -114,17 +103,9 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/Model/Update").request().put(csEntity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Model/Update").request().put(csEntity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Model/Update").request().put(csEntity, ApexApiResult.class);
 
-        try {
-            result = target("editor/" + corruptSessionId + "/Model/GetKey").request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        result = target("editor/" + corruptSessionId + "/Model/GetKey").request().get(ApexApiResult.class);
 
         result = target("editor/" + sessionId + "/Model/GetKey").request().get(ApexApiResult.class);
         assertEquals(Result.SUCCESS, result.getResult());
@@ -133,11 +114,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/12345/Model/GetKey").request().get(ApexApiResult.class);
         assertEquals(Result.FAILED, result.getResult());
 
-        try {
-            result = target("editor/" + corruptSessionId + "/Model/Get").request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        result = target("editor/" + corruptSessionId + "/Model/Get").request().get(ApexApiResult.class);
 
         result = target("editor/" + sessionId + "/Model/Get").request().get(ApexApiResult.class);
         assertEquals(Result.SUCCESS, result.getResult());
@@ -158,11 +135,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         resultString = target("editor/12345/Model/Download").request().get(String.class);
         assertEquals("", resultString);
 
-        try {
-            result = target("editor/" + corruptSessionId + "/KeyInformation/Get").request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        result = target("editor/" + corruptSessionId + "/KeyInformation/Get").request().get(ApexApiResult.class);
 
         result = target("editor/" + sessionId + "/KeyInformation/Get").request().get(ApexApiResult.class);
         assertEquals(Result.SUCCESS, result.getResult());
@@ -171,11 +144,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/12345/KeyInformation/Get").request().get(ApexApiResult.class);
         assertEquals(Result.FAILED, result.getResult());
 
-        try {
-            result = target("editor/" + corruptSessionId + "/Model/Delete").request().delete(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        result = target("editor/" + corruptSessionId + "/Model/Delete").request().delete(ApexApiResult.class);
 
         result = target("editor/" + sessionId + "/Model/Delete").request().delete(ApexApiResult.class);
         assertEquals(Result.SUCCESS, result.getResult());
@@ -196,11 +165,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/-12345/Validate/ContextSchema").request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Validate/ContextSchema").request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Validate/ContextSchema").request().get(ApexApiResult.class);
 
         result = target("editor/" + sessionId + "/Validate/ContextSchema").request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.CONCEPT_DOES_NOT_EXIST, result.getResult());
@@ -232,12 +197,8 @@ public class ApexEditorRestResourceTest extends JerseyTest {
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/ContextSchema/Get").queryParam("name", (String) null)
+        target("editor/" + corruptSessionId + "/ContextSchema/Get").queryParam("name", (String) null)
                     .queryParam("version", (String) null).request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         String csString = "{" + "\"name\"             : \"Hello\"," + "\"version\"          : \"0.0.2\","
                 + "\"schemaFlavour\"    : \"Java\"," + "\"schemaDefinition\" : \"java.lang.String\","
@@ -251,12 +212,9 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/ContextSchema/Create").request().post(csEntity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/ContextSchema/Create").request().post(csEntity,
+        target("editor/" + corruptSessionId + "/ContextSchema/Create").request().post(csEntity,
                     ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+
 
         csString = "{" + "\"name\"             : \"Hello\"," + "\"version\"          : \"0.0.2\","
                 + "\"schemaFlavour\"    : \"Java\"," + "\"schemaDefinition\" : \"my.perfect.String\","
@@ -270,11 +228,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/ContextSchema/Update").request().put(csEntity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/ContextSchema/Update").request().put(csEntity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/ContextSchema/Update").request().put(csEntity, ApexApiResult.class);
 
         result = target("editor/" + sessionId + "/ContextSchema/Get").queryParam("name", "Hello")
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
@@ -289,23 +243,15 @@ public class ApexEditorRestResourceTest extends JerseyTest {
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/ContextSchema/Get").queryParam("name", "Hello")
+        target("editor/" + corruptSessionId + "/ContextSchema/Get").queryParam("name", "Hello")
                     .queryParam("version", (String) null).request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         result = target("editor/" + sessionId + "/Validate/ContextSchema").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/ContextSchema/Delete").queryParam("name", "Hello")
+        target("editor/" + corruptSessionId + "/ContextSchema/Delete").queryParam("name", "Hello")
                     .queryParam("version", "0.0.2").request().delete(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         result = target("editor/-123345/ContextSchema/Delete").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().delete(ApexApiResult.class);
@@ -331,11 +277,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/-12345/Validate/ContextAlbum").request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Validate/ContextAlbum").request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Validate/ContextAlbum").request().get(ApexApiResult.class);
 
         result = target("editor/" + sessionId + "/Validate/ContextAlbum").request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.CONCEPT_DOES_NOT_EXIST, result.getResult());
@@ -380,11 +322,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/ContextAlbum/Create").request().post(caEntity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/ContextAlbum/Create").request().post(caEntity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/ContextAlbum/Create").request().post(caEntity, ApexApiResult.class);
 
         caString = "{" + "\"name\"             : \"Hello\"," + "\"version\"          : \"0.0.2\","
                 + "\"scope\"            : \"Global\"," + "\"writeable\"        : false,"
@@ -399,18 +337,10 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/ContextAlbum/Update").request().put(caEntity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/ContextAlbum/Update").request().put(caEntity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/ContextAlbum/Update").request().put(caEntity, ApexApiResult.class);
 
-        try {
-            target("editor/" + corruptSessionId + "/ContextAlbum/Get").queryParam("name", "Hello")
+        target("editor/" + corruptSessionId + "/ContextAlbum/Get").queryParam("name", "Hello")
                     .queryParam("version", (String) null).request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         result = target("editor/" + sessionId + "/ContextAlbum/Get").queryParam("name", "Hello")
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
@@ -429,12 +359,8 @@ public class ApexEditorRestResourceTest extends JerseyTest {
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/ContextAlbum/Delete").queryParam("name", (String) null)
+        target("editor/" + corruptSessionId + "/ContextAlbum/Delete").queryParam("name", (String) null)
                     .queryParam("version", (String) null).request().delete(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         result = target("editor/-123345/ContextAlbum/Delete").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().delete(ApexApiResult.class);
@@ -464,11 +390,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/Validate/Event").request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.CONCEPT_DOES_NOT_EXIST, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Validate/Event").request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Validate/Event").request().get(ApexApiResult.class);
 
         result = target("editor/" + sessionId + "/Validate/Event").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
@@ -511,11 +433,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/Event/Create").request().post(entity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.CONCEPT_EXISTS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Event/Create").request().post(entity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Event/Create").request().post(entity, ApexApiResult.class);
 
         entityString = "{" + "\"name\"             : \"Hiya\"," + "\"version\"          : \"0.0.2\","
                 + "\"namespace\"        : \"somewhere.over.the.rainbow\"," + "\"source\"           : \"beginning\","
@@ -570,11 +488,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/Event/Update").request().put(entity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Event/Update").request().put(entity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Event/Update").request().put(entity, ApexApiResult.class);
 
         entityString = "{" + "\"name\"             : null," + "\"version\"          : \"0.0.2\","
                 + "\"namespace\"        : \"somewhere.over.someone.elses.rainbow\","
@@ -607,12 +521,8 @@ public class ApexEditorRestResourceTest extends JerseyTest {
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Event/Get").queryParam("name", "Hello")
+        target("editor/" + corruptSessionId + "/Event/Get").queryParam("name", "Hello")
                     .queryParam("version", (String) null).request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         result = target("editor/" + sessionId + "/Validate/Event").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
@@ -624,12 +534,8 @@ public class ApexEditorRestResourceTest extends JerseyTest {
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Event/Delete").queryParam("name", (String) null)
+        target("editor/" + corruptSessionId + "/Event/Delete").queryParam("name", (String) null)
                     .queryParam("version", (String) null).request().delete(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         result = target("editor/-123345/Event/Delete").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().delete(ApexApiResult.class);
@@ -705,11 +611,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/Task/Create").request().post(entity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.CONCEPT_EXISTS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Task/Create").request().post(entity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Task/Create").request().post(entity, ApexApiResult.class);
 
         entityString = "{" + "\"name\"             : \"Hiya\"," + "\"version\"          : \"0.0.2\","
                 + "\"uuid\"             : \"1fa2e430-f2b2-11e6-bc64-92361f002799\","
@@ -896,11 +798,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/Task/Update").request().put(entity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Task/Update").request().put(entity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Task/Update").request().put(entity, ApexApiResult.class);
 
         entityString = "{" + "\"name\"             : null," + "\"version\"          : \"0.0.2\","
                 + "\"uuid\"             : \"1fa2e430-f2b2-11e6-bc64-92361f002671\","
@@ -932,12 +830,8 @@ public class ApexEditorRestResourceTest extends JerseyTest {
                 .request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Task/Get").queryParam("name", "Hello")
+        target("editor/" + corruptSessionId + "/Task/Get").queryParam("name", "Hello")
                     .queryParam("version", (String) null).request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         result = target("editor/" + sessionId + "/Validate/Event").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
@@ -949,12 +843,8 @@ public class ApexEditorRestResourceTest extends JerseyTest {
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Task/Delete").queryParam("name", (String) null)
+        target("editor/" + corruptSessionId + "/Task/Delete").queryParam("name", (String) null)
                     .queryParam("version", (String) null).request().delete(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         result = target("editor/-123345/Task/Delete").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().delete(ApexApiResult.class);
@@ -984,12 +874,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/Model/Validate").request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Model/Validate").request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
-
+        target("editor/" + corruptSessionId + "/Model/Validate").request().get(ApexApiResult.class);
         result = target("editor/" + sessionId + "/Model/Validate").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
@@ -1039,11 +924,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
         result = target("editor/" + sessionId + "/Policy/Create").request().post(entity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.CONCEPT_EXISTS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Policy/Create").request().post(entity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Policy/Create").request().post(entity, ApexApiResult.class);
 
         entityString = "{" + "\"name\"             : \"GoodTaSeeYa\"," + "\"version\"          : \"0.0.2\","
                 + "\"template\"         : \"somewhere.over.the.rainbow\"," + "\"firstState\"       : \"state\","
@@ -1411,11 +1292,7 @@ public class ApexEditorRestResourceTest extends JerseyTest {
                 .put(entity, ApexApiResult.class);
         assertEquals(ApexApiResult.Result.SUCCESS, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Policy/Update").request().put(entity, ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
+        target("editor/" + corruptSessionId + "/Policy/Update").request().put(entity, ApexApiResult.class);
 
         entityString = "{" + "\"name\"             : null," + "\"version\"          : \"0.0.2\","
                 + "\"template\"         : \"somewhere.over.the.rainbow\"," + "\"firstState\"       : \"state\","
@@ -1465,12 +1342,8 @@ public class ApexEditorRestResourceTest extends JerseyTest {
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Policy/Get").queryParam("name", "Hello")
+        target("editor/" + corruptSessionId + "/Policy/Get").queryParam("name", "Hello")
                     .queryParam("version", (String) null).request().get(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         result = target("editor/" + sessionId + "/Validate/Event").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
@@ -1482,12 +1355,8 @@ public class ApexEditorRestResourceTest extends JerseyTest {
                 .queryParam("version", (String) null).request().get(ApexApiResult.class);
         assertEquals(ApexApiResult.Result.FAILED, result.getResult());
 
-        try {
-            target("editor/" + corruptSessionId + "/Policy/Delete").queryParam("name", (String) null)
+        target("editor/" + corruptSessionId + "/Policy/Delete").queryParam("name", (String) null)
                     .queryParam("version", (String) null).request().delete(ApexApiResult.class);
-        } catch (final Exception e) {
-            assertEquals("HTTP 500 Request failed.", e.getMessage());
-        }
 
         result = target("editor/-123345/Policy/Delete").queryParam("name", (String) null)
                 .queryParam("version", (String) null).request().delete(ApexApiResult.class);
diff --git a/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/handling/bean/BeansTest.java b/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/handling/bean/BeansTest.java
index ba773b1ac..bdf47fedc 100644
--- a/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/handling/bean/BeansTest.java
+++ b/client/client-editor/src/test/java/org/onap/policy/apex/client/editor/rest/handling/bean/BeansTest.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ *  Modifications Copyright (C) 2020 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.apex.client.editor.rest.handling.bean;
 
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
-import static org.junit.Assert.fail;
 
 import org.junit.Test;
 
@@ -60,29 +61,9 @@ public class BeansTest {
         assertNull(beanFake.get("name"));
         assertNull(beanFake.get("field1"));
 
-        try {
-            beanFake.get("iDontExist");
-            fail("test should throw an exception here");
-        } catch (final IllegalArgumentException e) {
-            assertNotNull(e);
-        }
-        try {
-            beanFake.get("nome");
-            fail("test should throw an exception here");
-        } catch (final IllegalArgumentException e) {
-            assertNotNull(e);
-        }
-        try {
-            beanFake.get("field2");
-            fail("test should throw an exception here");
-        } catch (final IllegalArgumentException e) {
-            assertNotNull(e);
-        }
-        try {
-            beanFake.get("field3");
-            fail("test should throw an exception here");
-        } catch (final IllegalArgumentException e) {
-            assertNotNull(e);
-        }
+        assertThatThrownBy(() -> beanFake.get("iDontExist")).isInstanceOf(IllegalArgumentException.class);
+        assertThatThrownBy(() -> beanFake.get("nome")).isInstanceOf(IllegalArgumentException.class);
+        assertThatThrownBy(() -> beanFake.get("field2")).isInstanceOf(IllegalArgumentException.class);
+        assertThatThrownBy(() -> beanFake.get("field3")).isInstanceOf(IllegalArgumentException.class);
     }
 }
diff --git a/client/client-monitoring/src/test/java/org/onap/policy/apex/client/monitoring/rest/MonitoringRestMainTest.java b/client/client-monitoring/src/test/java/org/onap/policy/apex/client/monitoring/rest/MonitoringRestMainTest.java
index 688d29b37..b376c9bfa 100644
--- a/client/client-monitoring/src/test/java/org/onap/policy/apex/client/monitoring/rest/MonitoringRestMainTest.java
+++ b/client/client-monitoring/src/test/java/org/onap/policy/apex/client/monitoring/rest/MonitoringRestMainTest.java
@@ -21,9 +21,11 @@
 
 package org.onap.policy.apex.client.monitoring.rest;
 
+import static org.assertj.core.api.Assertions.assertThatCode;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.awaitility.Awaitility.await;
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
+import static org.junit.Assert.assertNotNull;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
@@ -38,24 +40,14 @@ import org.junit.Test;
 public class MonitoringRestMainTest {
     @Test
     public void testMonitoringClientBad() {
-        try {
-            final String[] eventArgs = {"-z"};
-
-            ApexMonitoringRestMain.main(eventArgs);
-        } catch (Exception exc) {
-            fail("test should not throw an exception");
-        }
+        final String[] eventArgs = {"-z"};
+        assertThatCode(() -> ApexMonitoringRestMain.main(eventArgs)).doesNotThrowAnyException();
     }
 
     @Test
     public void testMonitoringClientOk() {
-        try {
-            final String[] eventArgs = {"-t", "1"};
-
-            ApexMonitoringRestMain.main(eventArgs);
-        } catch (Exception exc) {
-            fail("test should not throw an exception");
-        }
+        final String[] eventArgs = {"-t", "1"};
+        assertThatCode(() -> ApexMonitoringRestMain.main(eventArgs)).doesNotThrowAnyException();
     }
 
     @Test
@@ -72,142 +64,93 @@ public class MonitoringRestMainTest {
     public void testMonitoringClientBadOptions() {
         final String[] eventArgs = {"-zabbu"};
 
-        try {
-            new ApexMonitoringRestMain(eventArgs, System.out);
-            fail("test should throw an exception");
-        } catch (Exception ex) {
-            assertEquals(
-                "Apex Services REST endpoint (ApexMonitoringRestMain: Config=[null], State=STOPPED) "
-                    + "parameter error, invalid command line arguments specified " + ": Unrecognized option: -zabbu",
-                ex.getMessage().substring(0, 170));
-        }
+        assertThatThrownBy(() -> new ApexMonitoringRestMain(eventArgs, System.out))
+            .hasMessageContaining("Apex Services REST endpoint (ApexMonitoringRestMain: Config=[null], State=STOPPED) "
+                + "parameter error, invalid command line arguments specified " + ": Unrecognized option: -zabbu");
     }
 
     @Test
     public void testMonitoringClientHelp() {
         final String[] eventArgs = {"-h"};
 
-        try {
-            new ApexMonitoringRestMain(eventArgs, System.out);
-            fail("test should throw an exception");
-        } catch (Exception ex) {
-            assertEquals("usage: org.onap.policy.apex.client.monitoring.rest.ApexMonitoringRestMain [options...]",
-                ex.getMessage().substring(0, 86));
-        }
+        assertThatThrownBy(() -> new ApexMonitoringRestMain(eventArgs, System.out))
+            .hasMessageContaining("usage: org.onap.policy.apex.client.monitoring.rest."
+                    + "ApexMonitoringRestMain [options...]");
     }
 
     @Test
     public void testMonitoringClientPortBad() {
         final String[] eventArgs = {"-p", "hello"};
 
-        try {
-            new ApexMonitoringRestMain(eventArgs, System.out);
-            fail("test should throw an exception");
-        } catch (Exception ex) {
-            assertEquals(
-                "Apex Services REST endpoint (ApexMonitoringRestMain: Config=[null], State=STOPPED) "
-                    + "parameter error, error parsing argument \"port\" :For input string: \"hello\"",
-                ex.getMessage().substring(0, 156));
-        }
+        assertThatThrownBy(() -> new ApexMonitoringRestMain(eventArgs, System.out))
+            .hasMessageContaining("Apex Services REST endpoint (ApexMonitoringRestMain: Config=[null], State=STOPPED) "
+                    + "parameter error, error parsing argument \"port\" :For input string: \"hello\"");
     }
 
     @Test
     public void testMonitoringClientPortNegative() {
         final String[] eventArgs = {"-p", "-1"};
 
-        try {
-            new ApexMonitoringRestMain(eventArgs, System.out);
-            fail("test should throw an exception");
-        } catch (Exception ex) {
-            assertEquals("Apex Services REST endpoint (ApexMonitoringRestMain: Config=[ApexMonitoringRestParameters: "
-                + "URI=http://localhost:-1/apexservices/, TTL=-1sec], State=STOPPED) parameters invalid, "
-                + "port must be greater than 1023 and less than 65536", ex.getMessage().substring(0, 227));
-        }
+        assertThatThrownBy(() -> new ApexMonitoringRestMain(eventArgs, System.out))
+            .hasMessageContaining("Apex Services REST endpoint (ApexMonitoringRestMain: Config=[ApexMonitoringRest"
+                + "Parameters: URI=http://localhost:-1/apexservices/, TTL=-1sec], State=STOPPED) parameters invalid, "
+                + "port must be greater than 1023 and less than 65536");
     }
 
     @Test
     public void testMonitoringClientTtlTooSmall() {
         final String[] eventArgs = {"-t", "-2"};
 
-        try {
-            new ApexMonitoringRestMain(eventArgs, System.out);
-            fail("test should throw an exception");
-        } catch (Exception ex) {
-            assertEquals(
-                "Apex Services REST endpoint (ApexMonitoringRestMain: Config=[ApexMonitoringRestParameters: "
-                    + "URI=http://localhost:18989/apexservices/, TTL=-2sec], State=STOPPED) parameters invalid, "
-                    + "time to live must be greater than -1 (set to -1 to wait forever)",
-                ex.getMessage().substring(0, 244));
-        }
+        assertThatThrownBy(() -> new ApexMonitoringRestMain(eventArgs, System.out))
+            .hasMessageContaining("Apex Services REST endpoint (ApexMonitoringRestMain: Config=[ApexMonitoringRest"
+                    + "Parameters: URI=http://localhost:18989/apexservices/, TTL=-2sec], State=STOPPED) parameters invalid, "
+                    + "time to live must be greater than -1 (set to -1 to wait forever)");
     }
 
     @Test
     public void testMonitoringClientTooManyPars() {
         final String[] eventArgs = {"-t", "10", "-p", "12344", "aaa", "bbb"};
 
-        try {
-            new ApexMonitoringRestMain(eventArgs, System.out);
-            fail("test should throw an exception");
-        } catch (Exception ex) {
-            assertEquals(
-                "Apex Services REST endpoint (ApexMonitoringRestMain: Config=[null], State=STOPPED) "
-                    + "parameter error, too many command line arguments specified : [aaa, bbb]",
-                ex.getMessage().substring(0, 154));
-        }
+        assertThatThrownBy(() -> new ApexMonitoringRestMain(eventArgs, System.out))
+            .hasMessageContaining("Apex Services REST endpoint (ApexMonitoringRestMain: Config=[null], State=STOPPED) "
+                    + "parameter error, too many command line arguments specified : [aaa, bbb]");
     }
 
     @Test
     public void testMonitoringClientTtlNotNumber() {
         final String[] eventArgs = {"-t", "timetolive"};
 
-        try {
-            new ApexMonitoringRestMain(eventArgs, System.out);
-            fail("test should throw an exception");
-        } catch (Exception ex) {
-            assertEquals(
-                "Apex Services REST endpoint (ApexMonitoringRestMain: Config=[null], State=STOPPED) "
-                    + "parameter error, error parsing argument \"time-to-live\" :" + "For input string: \"timetolive\"",
-                ex.getMessage().substring(0, 169));
-        }
+        assertThatThrownBy(() -> new ApexMonitoringRestMain(eventArgs, System.out))
+            .hasMessageContaining("Apex Services REST endpoint (ApexMonitoringRestMain: Config=[null], State=STOPPED) "
+                    + "parameter error, error parsing argument \"time-to-live\" :" + "For input string: \""
+                            + "timetolive\"");
     }
 
     @Test
     public void testMonitoringClientPortTooBig() {
         final String[] eventArgs = {"-p", "65536"};
 
-        try {
-            new ApexMonitoringRestMain(eventArgs, System.out);
-            fail("test should throw an exception");
-        } catch (Exception ex) {
-            assertEquals("Apex Services REST endpoint (ApexMonitoringRestMain: Config=[ApexMonitoringRestParameters: "
-                + "URI=http://localhost:65536/apexservices/, TTL=-1sec], State=STOPPED) parameters invalid, "
-                + "port must be greater than 1023 and less than 65536", ex.getMessage().substring(0, 230));
-        }
+        assertThatThrownBy(() -> new ApexMonitoringRestMain(eventArgs, System.out))
+            .hasMessageContaining("Apex Services REST endpoint (ApexMonitoringRestMain: Config=[ApexMonitoring"
+                + "RestParameters: URI=http://localhost:65536/apexservices/, TTL=-1sec], State=STOPPED) parameters invalid, "
+                + "port must be greater than 1023 and less than 65536");
     }
 
     @Test
     public void testMonitoringClientDefaultPars() {
-        try {
-            ApexMonitoringRest monRest = new ApexMonitoringRest();
-            monRest.shutdown();
-
-        } catch (Exception ex) {
-            fail("test should not throw an exception");
-        }
+        ApexMonitoringRest monRest = new ApexMonitoringRest();
+        assertNotNull(monRest);
+        assertThatCode(() -> monRest.shutdown()).isNull();
     }
 
     @Test
     public void testMonitoringOneSecStart() {
         final String[] eventArgs = {"-t", "1"};
 
-        try {
-            ApexMonitoringRestMain monRestMain = new ApexMonitoringRestMain(eventArgs, System.out);
-            monRestMain.init();
-            monRestMain.shutdown();
-
-        } catch (Exception ex) {
-            fail("test should not throw an exception");
-        }
+        ApexMonitoringRestMain monRestMain = new ApexMonitoringRestMain(eventArgs, System.out);
+        assertNotNull(monRestMain);
+        monRestMain.init();
+        assertThatCode(() -> monRestMain.shutdown()).isNull();
     }
 
     @Test
@@ -222,15 +165,12 @@ public class MonitoringRestMainTest {
                 monRestMain.init();
             }
         };
-
-        try {
+        assertThatCode(() -> {
             monThread.start();
             await().atMost(6, TimeUnit.SECONDS)
                 .until(() -> monRestMain.getState().equals(ApexMonitoringRestMain.ServicesState.RUNNING));
             monRestMain.shutdown();
-        } catch (Exception ex) {
-            fail("test should not throw an exception");
-        }
+        }).doesNotThrowAnyException();
     }
 
     /**