Cleanup various sonar issues in policy-common

Addressed the following issues:
- unused imports
- unused method parameters
- use assertEquals, assertSame instead of assertTrue
- provide the parametrized type for this generic

Also fixed some checkstyle issues:
- removed blank lines between "import" groups

Issue-ID: POLICY-2650
Change-Id: I004bb650ac10c49ccd0fc405f6959896fec39f9b
Signed-off-by: Jim Hahn <jrh3@att.com>

13 files changed, 40 insertions, 61 deletions

diff --git a/common-logging/src/main/java/org/onap/policy/common/logging/OnapLoggingContext.java b/common-logging/src/main/java/org/onap/policy/common/logging/OnapLoggingContext.java
index 0373abfe..47c05041 100644
--- a/common-logging/src/main/java/org/onap/policy/common/logging/OnapLoggingContext.java
+++ b/common-logging/src/main/java/org/onap/policy/common/logging/OnapLoggingContext.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP-Logging
  * ================================================================================
- * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017-2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,7 +24,6 @@ import java.text.SimpleDateFormat;
 import java.time.Duration;
 import java.time.Instant;
 import java.util.Date;
-
 import org.onap.policy.common.logging.nsa.LoggingContextFactory;
 import org.onap.policy.common.logging.nsa.SharedLoggingContext;
 import org.slf4j.MDC;
diff --git a/common-logging/src/main/java/org/onap/policy/common/logging/eelf/PolicyLogger.java b/common-logging/src/main/java/org/onap/policy/common/logging/eelf/PolicyLogger.java
index 7bc2c1dc..c582ea85 100644
--- a/common-logging/src/main/java/org/onap/policy/common/logging/eelf/PolicyLogger.java
+++ b/common-logging/src/main/java/org/onap/policy/common/logging/eelf/PolicyLogger.java
@@ -54,10 +54,8 @@ import java.net.UnknownHostException;
 import java.text.SimpleDateFormat;
 import java.time.Duration;
 import java.time.Instant;
-import java.util.Arrays;
 import java.util.Date;
 import java.util.Iterator;
-import java.util.Map;
 import java.util.Properties;
 import java.util.Timer;
 import java.util.UUID;
diff --git a/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/EelfLogger.java b/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/EelfLogger.java
index df60fa9c..837a584f 100644
--- a/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/EelfLogger.java
+++ b/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/EelfLogger.java
@@ -21,10 +21,8 @@
 package org.onap.policy.common.logging.flexlogger;
 
 import com.att.eelf.configuration.EELFLogger.Level;
-
 import java.io.Serializable;
 import java.util.UUID;
-
 import org.onap.policy.common.logging.eelf.MessageCodes;
 import org.onap.policy.common.logging.eelf.PolicyLogger;
 
diff --git a/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/FlexLogger.java b/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/FlexLogger.java
index 62459bcc..eb6daee9 100644
--- a/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/FlexLogger.java
+++ b/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/FlexLogger.java
@@ -29,7 +29,6 @@ import java.util.Date;
 import java.util.Properties;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
-
 import org.onap.policy.common.logging.eelf.PolicyLogger;
 import org.onap.policy.common.logging.flexlogger.PropertyUtil.Listener;
 
@@ -73,10 +72,8 @@ public class FlexLogger extends SecurityManager {
 
     /**
      * Returns an instance of Logger.
-     *
-     * @param name the name of the logger
      */
-    public static Logger getLogger(String name) {
+    public static Logger getLogger() {
         Logger logger = null;
         displayMessage(GET_LOGGER_PREFIX + loggerType);
         switch (loggerType) {
@@ -121,10 +118,9 @@ public class FlexLogger extends SecurityManager {
     /**
      * Returns an instance of Logger.
      *
-     * @param name the name of the logger
      * @param isNewTransaction is a new transaction
      */
-    public static Logger getLogger(String name, boolean isNewTransaction) {
+    public static Logger getLogger(boolean isNewTransaction) {
         Logger logger = null;
         displayMessage(GET_LOGGER_PREFIX + loggerType);
         switch (loggerType) {
diff --git a/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/Logger.java b/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/Logger.java
index 315cd935..ad155a4c 100644
--- a/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/Logger.java
+++ b/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/Logger.java
@@ -21,7 +21,6 @@
 package org.onap.policy.common.logging.flexlogger;
 
 import java.util.UUID;
-
 import org.onap.policy.common.logging.eelf.MessageCodes;
 
 /**
diff --git a/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/SystemOutLogger.java b/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/SystemOutLogger.java
index bc7633da..a059bd77 100644
--- a/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/SystemOutLogger.java
+++ b/common-logging/src/main/java/org/onap/policy/common/logging/flexlogger/SystemOutLogger.java
@@ -23,11 +23,9 @@ package org.onap.policy.common.logging.flexlogger;
 import static org.onap.policy.common.logging.flexlogger.DisplayUtils.displayMessage;
 
 import com.att.eelf.configuration.EELFLogger.Level;
-
 import java.io.Serializable;
 import java.util.Arrays;
 import java.util.UUID;
-
 import org.onap.policy.common.logging.OnapLoggingUtils;
 import org.onap.policy.common.logging.eelf.MessageCodes;
 import org.onap.policy.common.logging.eelf.PolicyLogger;
diff --git a/common-logging/src/main/java/org/onap/policy/common/logging/nsa/impl/SharedContext.java b/common-logging/src/main/java/org/onap/policy/common/logging/nsa/impl/SharedContext.java
index e5f5e65b..13b38fc0 100644
--- a/common-logging/src/main/java/org/onap/policy/common/logging/nsa/impl/SharedContext.java
+++ b/common-logging/src/main/java/org/onap/policy/common/logging/nsa/impl/SharedContext.java
@@ -2,14 +2,14 @@
  * ============LICENSE_START=======================================================
  * ONAP-Logging
  * ================================================================================
- * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017-2018, 2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -22,7 +22,6 @@ package org.onap.policy.common.logging.nsa.impl;
 
 import java.util.HashMap;
 import java.util.Map.Entry;
-
 import org.onap.policy.common.logging.nsa.LoggingContext;
 import org.onap.policy.common.logging.nsa.SharedLoggingContext;
 
diff --git a/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventDataTest.java b/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventDataTest.java
index 6fe81d27..882cc2cf 100644
--- a/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventDataTest.java
+++ b/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventDataTest.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP Policy Engine - Common Modules
  * ================================================================================
- * Copyright (C) 2018-2019 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018-2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,13 +21,10 @@
 package org.onap.policy.common.logging.eelf;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
 
 import java.time.Instant;
-
 import org.junit.Test;
 
 public class EventDataTest {
@@ -142,32 +139,33 @@ public class EventDataTest {
         final EventData d3 = new EventData("abc", iend, istart);
 
         // same object
-        assertTrue(d1.equals(d1));
+        assertEquals(d1, d1);
 
         // compare with null
-        assertFalse(d1.equals(null));
+        assertNotEquals(d1, null);
 
         // compare with request id
-        assertTrue(d1.equals("abc"));
-        assertFalse(d1.equals("abd"));
+        // note: ignoring sonar because we want to test d1.equals(), not "abc".equals()
+        assertEquals(d1, "abc");        // NOSONAR
+        assertNotEquals(d1, "abd");
 
         // compare with int - different class type
-        assertFalse(d1.equals(10));
+        assertNotEquals(d1, 10);
 
         // "this" has null request id
-        assertFalse(new EventData().equals(d1));
+        assertNotEquals(new EventData(), d1);
 
         // both null
-        assertTrue(new EventData().equals(new EventData()));
+        assertEquals(new EventData(), new EventData());
 
         // this request id is not null, other is null
-        assertFalse(d1.equals(new EventData()));
+        assertNotEquals(d1, new EventData());
 
         // neither null, same
-        assertTrue(d1.equals(d3));
+        assertEquals(d1, d3);
 
         // neither null, diff
-        assertFalse(d1.equals(d2));
+        assertNotEquals(d1, d2);
     }
 
 }
diff --git a/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventTrackInfoHandlerTest.java b/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventTrackInfoHandlerTest.java
index d1d5983d..2cc1e59e 100644
--- a/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventTrackInfoHandlerTest.java
+++ b/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventTrackInfoHandlerTest.java
@@ -2,14 +2,14 @@
  * ============LICENSE_START=======================================================
  * ONAP Policy Engine - Common Modules
  * ================================================================================
- * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018, 2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -24,7 +24,6 @@ import static org.junit.Assert.assertEquals;
 
 import java.time.Instant;
 import java.util.concurrent.ConcurrentMap;
-
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Test;
diff --git a/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventTrackInfoTest.java b/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventTrackInfoTest.java
index e6024682..0ca5feb5 100644
--- a/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventTrackInfoTest.java
+++ b/common-logging/src/test/java/org/onap/policy/common/logging/eelf/EventTrackInfoTest.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP Policy Engine - Common Modules
  * ================================================================================
- * Copyright (C) 2018-2019 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018-2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,10 +23,10 @@ package org.onap.policy.common.logging.eelf;
 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 java.time.Instant;
-
 import org.junit.Before;
 import org.junit.Test;
 
@@ -62,8 +62,8 @@ public class EventTrackInfoTest {
         info.storeEventData(data1);
         info.storeEventData(data2);
 
-        assertTrue(data1 == info.getEventDataByRequestId("abc"));
-        assertTrue(data2 == info.getEventDataByRequestId("def"));
+        assertSame(data1, info.getEventDataByRequestId("abc"));
+        assertSame(data2, info.getEventDataByRequestId("def"));
         assertNull(info.getEventDataByRequestId("hello"));
     }
 
@@ -86,14 +86,14 @@ public class EventTrackInfoTest {
         assertEquals(2, info.getEventInfo().size());
 
         // look-up by request id
-        assertTrue(data1 == info.getEventDataByRequestId("abc"));
-        assertTrue(data2 == info.getEventDataByRequestId("def"));
+        assertSame(data1, info.getEventDataByRequestId("abc"));
+        assertSame(data2, info.getEventDataByRequestId("def"));
 
         // doesn't replace existing value
         info.storeEventData(new EventData("abc", iend, istart));
         assertEquals(2, info.getEventInfo().size());
-        assertTrue(data1 == info.getEventDataByRequestId("abc"));
-        assertTrue(data2 == info.getEventDataByRequestId("def"));
+        assertSame(data1, info.getEventDataByRequestId("abc"));
+        assertSame(data2, info.getEventDataByRequestId("def"));
     }
 
     /**
@@ -111,7 +111,7 @@ public class EventTrackInfoTest {
 
         // look-up by request id
         assertNull(info.getEventDataByRequestId("abc"));
-        assertTrue(data2 == info.getEventDataByRequestId("def"));
+        assertSame(data2, info.getEventDataByRequestId("def"));
     }
 
     /**
@@ -123,8 +123,8 @@ public class EventTrackInfoTest {
         info.storeEventData(data2);
 
         assertEquals(2, info.getEventInfo().size());
-        assertTrue(data1 == info.getEventInfo().get("abc"));
-        assertTrue(data2 == info.getEventInfo().get("def"));
+        assertSame(data1, info.getEventInfo().get("abc"));
+        assertSame(data2, info.getEventInfo().get("def"));
     }
 
 }
diff --git a/common-logging/src/test/java/org/onap/policy/common/logging/eelf/PolicyLoggerTest.java b/common-logging/src/test/java/org/onap/policy/common/logging/eelf/PolicyLoggerTest.java
index adb7d366..8688ea3d 100644
--- a/common-logging/src/test/java/org/onap/policy/common/logging/eelf/PolicyLoggerTest.java
+++ b/common-logging/src/test/java/org/onap/policy/common/logging/eelf/PolicyLoggerTest.java
@@ -37,7 +37,6 @@ import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.verify;
 import static org.onap.policy.common.logging.eelf.OnapConfigProperties.PARTNER_NAME;
 import static org.onap.policy.common.logging.eelf.OnapConfigProperties.RESPONSE_CODE;
 import static org.onap.policy.common.logging.eelf.OnapConfigProperties.RESPONSE_DESCRIPTION;
@@ -46,11 +45,9 @@ import static org.onap.policy.common.logging.eelf.OnapConfigProperties.STATUS_CO
 
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFLogger.Level;
-
 import java.time.Instant;
 import java.util.Properties;
 import java.util.UUID;
-
 import org.junit.Before;
 import org.junit.Test;
 import org.mockito.Mockito;
diff --git a/common-logging/src/test/java/org/onap/policy/common/logging/flexlogger/FlexLoggerTest.java b/common-logging/src/test/java/org/onap/policy/common/logging/flexlogger/FlexLoggerTest.java
index f43c85df..f5fcefe6 100644
--- a/common-logging/src/test/java/org/onap/policy/common/logging/flexlogger/FlexLoggerTest.java
+++ b/common-logging/src/test/java/org/onap/policy/common/logging/flexlogger/FlexLoggerTest.java
@@ -52,15 +52,15 @@ public class FlexLoggerTest {
     @Test
     public void testGetLoggerStringEelf() {
         Whitebox.setInternalState(FlexLogger.class, "loggerType", LoggerType.EELF);
-        Logger logger = FlexLogger.getLogger("str1");
-        assertSame(logger, FlexLogger.getLogger("str1"));
+        Logger logger = FlexLogger.getLogger();
+        assertSame(logger, FlexLogger.getLogger());
     }
 
     @Test
     public void testGetLoggerStringSystemOut() {
         Whitebox.setInternalState(FlexLogger.class, "loggerType", LoggerType.SYSTEMOUT);
-        Logger logger = FlexLogger.getLogger("str1");
-        assertSame(logger, FlexLogger.getLogger("str1"));
+        Logger logger = FlexLogger.getLogger();
+        assertSame(logger, FlexLogger.getLogger());
     }
 
     @Test
@@ -80,15 +80,15 @@ public class FlexLoggerTest {
     @Test
     public void testGetLoggerStringBooleanEelf() {
         Whitebox.setInternalState(FlexLogger.class, "loggerType", LoggerType.EELF);
-        Logger logger = FlexLogger.getLogger("str1", true);
-        assertSame(logger, FlexLogger.getLogger("str1", true));
+        Logger logger = FlexLogger.getLogger(true);
+        assertSame(logger, FlexLogger.getLogger(true));
     }
 
     @Test
     public void testGetLoggerStringBooleanSystemOut() {
         Whitebox.setInternalState(FlexLogger.class, "loggerType", LoggerType.SYSTEMOUT);
-        Logger logger = FlexLogger.getLogger("str1", true);
-        assertSame(logger, FlexLogger.getLogger("str1", true));
+        Logger logger = FlexLogger.getLogger(true);
+        assertSame(logger, FlexLogger.getLogger(true));
     }
 
     @Test
diff --git a/common-logging/src/test/java/org/onap/policy/common/logging/flexlogger/SystemOutLoggerTest.java b/common-logging/src/test/java/org/onap/policy/common/logging/flexlogger/SystemOutLoggerTest.java
index cde423f5..38c9e0d2 100644
--- a/common-logging/src/test/java/org/onap/policy/common/logging/flexlogger/SystemOutLoggerTest.java
+++ b/common-logging/src/test/java/org/onap/policy/common/logging/flexlogger/SystemOutLoggerTest.java
@@ -27,11 +27,9 @@ import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
 import com.att.eelf.configuration.EELFLogger.Level;
-
 import java.io.ByteArrayOutputStream;
 import java.io.PrintStream;
 import java.util.UUID;
-
 import org.junit.Test;
 import org.onap.policy.common.logging.eelf.MessageCodes;
 import org.onap.policy.common.logging.eelf.PolicyLogger;