Apply simple sonar fixes

Note: A number of these were identified, by SonarLint, in the Test
classes, which are not typically scanned by Sonar.

Removed unnecessary imports.
Removed unneeded "throws Xxx".
Replaced lambda with method references.
Replaced duplicate strings with constants.
Replaced try-fail-catch with assert-j methods to eliminate sonar
complaints about duplicate failure messages.
Added missing @Override annotations.
Use map.computeIfAbsent() where appropriate.
Also fixed some minor checkstyle issues.
Removed unneeded "volatile" declarations.
Replaced some if-else constructs with "?:" construct, per sonar.
Replaced Object.wait() with CountDownLatch.await(); according to sonar
(and javadocs), Object.wait() can return due to "spurious wakeups".
Fixed issue whereby CryptoUtilsTest wouldn't run in my Eclipse.

Change-Id: Ib6b71ed65662cfd6209400dac57ed69279bf29ec
Issue-ID: POLICY-1791
Signed-off-by: Jim Hahn <jrh3@att.com>

3 files changed, 12 insertions, 12 deletions

diff --git a/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityMgrCloserTest.java b/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityMgrCloserTest.java
index e791e084..589d0924 100644
--- a/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityMgrCloserTest.java
+++ b/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityMgrCloserTest.java
@@ -2,14 +2,14 @@
  * ============LICENSE_START=======================================================
  * Common Utils
  * ================================================================================
- * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018-2019 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.
@@ -36,7 +36,7 @@ public class EntityMgrCloserTest {
 
 
     @Before
-    public void setUp() throws Exception {
+    public void setUp() {
         mgr = mock(EntityManager.class);
     }
 
diff --git a/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityMgrFactoryCloserTest.java b/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityMgrFactoryCloserTest.java
index 8f2c0159..ca2b7220 100644
--- a/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityMgrFactoryCloserTest.java
+++ b/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityMgrFactoryCloserTest.java
@@ -2,14 +2,14 @@
  * ============LICENSE_START=======================================================
  * Common Utils
  * ================================================================================
- * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018-2019 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.
@@ -36,7 +36,7 @@ public class EntityMgrFactoryCloserTest {
 
 
     @Before
-    public void setUp() throws Exception {
+    public void setUp() {
         factory = mock(EntityManagerFactory.class);
     }
 
diff --git a/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityTransCloserTest.java b/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityTransCloserTest.java
index 9a499e49..d764e9d0 100644
--- a/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityTransCloserTest.java
+++ b/utils/src/test/java/org/onap/policy/common/utils/jpa/EntityTransCloserTest.java
@@ -2,14 +2,14 @@
  * ============LICENSE_START=======================================================
  * Common Utils
  * ================================================================================
- * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2018-2019 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.
@@ -40,7 +40,7 @@ public class EntityTransCloserTest {
      * Set up EntityTransaction mock.
      */
     @Before
-    public void setUp() throws Exception {
+    public void setUp() {
         trans = mock(EntityTransaction.class);
 
         when(trans.isActive()).thenReturn(true);