Fix sonar and checkstyle issues in distribution

* Fixing all check style issues.
* Fixing all sonar issues.
* Adding maven check style plugin to fail at warning level.

Change-Id: I791b8feef39a3a0c3e1e250efea7b6e78208bf07
Issue-ID: POLICY-1035
Signed-off-by: ramverma <ram.krishna.verma@ericsson.com>

2 files changed, 12 insertions, 9 deletions

diff --git a/forwarding/src/main/java/org/onap/policy/distribution/forwarding/parameters/PolicyForwarderParameters.java b/forwarding/src/main/java/org/onap/policy/distribution/forwarding/parameters/PolicyForwarderParameters.java
index 57d04248..7306cc64 100644
--- a/forwarding/src/main/java/org/onap/policy/distribution/forwarding/parameters/PolicyForwarderParameters.java
+++ b/forwarding/src/main/java/org/onap/policy/distribution/forwarding/parameters/PolicyForwarderParameters.java
@@ -67,14 +67,16 @@ public class PolicyForwarderParameters implements ParameterGroup {
         return forwarderClassName;
     }
 
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public String getName() {
         return null;
     }
 
     /**
-     * Validate the policy forwarder parameters.
-     *
+     * {@inheritDoc}
      */
     @Override
     public GroupValidationResult validate() {
@@ -95,7 +97,7 @@ public class PolicyForwarderParameters implements ParameterGroup {
         try {
             Class.forName(forwarderClassName);
         } catch (final ClassNotFoundException exp) {
-            LOGGER.error("policy forwarder class not found in classpath", exp);
+            LOGGER.trace("policy forwarder class not found in classpath", exp);
             validationResult.setResult("forwarderClassName", ValidationStatus.INVALID,
                     "policy forwarder class not found in classpath");
         }
diff --git a/forwarding/src/test/java/org/onap/policy/distribution/forwarding/PolicyDecodingExceptionTest.java b/forwarding/src/test/java/org/onap/policy/distribution/forwarding/PolicyDecodingExceptionTest.java
index 4b9ed273..af820883 100644
--- a/forwarding/src/test/java/org/onap/policy/distribution/forwarding/PolicyDecodingExceptionTest.java
+++ b/forwarding/src/test/java/org/onap/policy/distribution/forwarding/PolicyDecodingExceptionTest.java
@@ -5,15 +5,15 @@
  * 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.
  * See the License for the specific language governing permissions and
  * limitations under the License.
- * 
+ *
  * SPDX-License-Identifier: Apache-2.0
  * ============LICENSE_END=========================================================
  */
@@ -21,20 +21,21 @@
 package org.onap.policy.distribution.forwarding;
 
 import static org.junit.Assert.assertEquals;
+
 import org.junit.Test;
 
 public class PolicyDecodingExceptionTest {
 
     @Test
     public void testPolicyDecodingExceptionString() {
-        PolicyForwardingException policyDecodingException = new PolicyForwardingException("error message");
+        final PolicyForwardingException policyDecodingException = new PolicyForwardingException("error message");
         assertEquals("error message", policyDecodingException.getMessage());
     }
 
     @Test
     public void testPolicyDecodingExceptionStringThrowable() {
-        Exception cause = new IllegalArgumentException();
-        PolicyForwardingException policyDecodingException = new PolicyForwardingException("error message", cause);
+        final Exception cause = new IllegalArgumentException();
+        final PolicyForwardingException policyDecodingException = new PolicyForwardingException("error message", cause);
         assertEquals("error message", policyDecodingException.getMessage());
         assertEquals(cause, policyDecodingException.getCause());
     }