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>

1 files changed, 8 insertions, 3 deletions

diff --git a/policy-endpoints/src/test/java/org/onap/policy/common/endpoints/event/comm/bus/internal/BusConsumerTest.java b/policy-endpoints/src/test/java/org/onap/policy/common/endpoints/event/comm/bus/internal/BusConsumerTest.java
index c9064d45..ae07798d 100644
--- a/policy-endpoints/src/test/java/org/onap/policy/common/endpoints/event/comm/bus/internal/BusConsumerTest.java
+++ b/policy-endpoints/src/test/java/org/onap/policy/common/endpoints/event/comm/bus/internal/BusConsumerTest.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * policy-endpoints
  * ================================================================================
- * 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.
@@ -47,6 +47,7 @@ import org.powermock.reflect.Whitebox;
 public class BusConsumerTest extends TopicTestBase {
 
     @Before
+    @Override
     public void setUp() {
         super.setUp();
     }
@@ -88,13 +89,17 @@ public class BusConsumerTest extends TopicTestBase {
             cons.fetch();
             fail("missing exception");
 
-        } catch (IOException | InterruptedException e) {
+        } catch (IOException e) {
+            assertEquals(ex, e);
+
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
             assertEquals(ex, e);
         }
     }
 
     @Test
-    public void testCambriaConsumerWrapperClose() throws Exception {
+    public void testCambriaConsumerWrapperClose() {
         CambriaConsumerWrapper cons = new CambriaConsumerWrapper(builder.build());
 
         // set filter several times to cause different branches of close() to be executed