Address more sonars in drools-pdp

Addressed the following sonars:
- either log or rethrow
- call "remove()" for thread-local-storage
- use assertEquals
- only one method call in exception test
- swap arguments in assertEquals
- add assertion to assertThatThrownBy()
- explain @Ignore

Also addressed eclipse warnings:
- unused fields and methods

Issue-ID: POLICY-2616
Change-Id: I6590c0d2b103885bc933014d48bf5fd92401cd80
Signed-off-by: Jim Hahn <jrh3@att.com>

1 files changed, 8 insertions, 16 deletions

diff --git a/policy-management/src/main/java/org/onap/policy/drools/system/Main.java b/policy-management/src/main/java/org/onap/policy/drools/system/Main.java
index 4f0dc39c..9e6d0432 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/system/Main.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/system/Main.java
@@ -157,10 +157,8 @@ public class Main {
                 .flush();
             logger.warn(
                     LoggerUtil.TRANSACTION_LOG_MARKER,
-                    "Main: cannot start {} (bad state) because of {}",
-                    PolicyEngineConstants.getManager(),
-                    e.getMessage(),
-                    e);
+                    "Main: cannot start {} (bad state)",
+                    PolicyEngineConstants.getManager());
             throw new PolicyDroolsPdpRuntimeException(
                     String.format(MessageConstants.START_FAILURE_MSG, MessageConstants.POLICY_DROOLS_PDP), e);
         } catch (final Exception e) {
@@ -171,10 +169,8 @@ public class Main {
                 .flush();
             logger.warn(
                     LoggerUtil.TRANSACTION_LOG_MARKER,
-                    "Main: cannot start {} because of {}",
-                    PolicyEngineConstants.getManager(),
-                    e.getMessage(),
-                    e);
+                    "Main: cannot start {}",
+                    PolicyEngineConstants.getManager());
             throw new PolicyDroolsPdpRuntimeException(
                     String.format(MessageConstants.START_FAILURE_MSG, MessageConstants.POLICY_DROOLS_PDP), e);
         }
@@ -209,10 +205,8 @@ public class Main {
                     .flush();
                 logger.error(
                         LoggerUtil.TRANSACTION_LOG_MARKER,
-                        "Main: cannot instantiate policy-controller {} because of {}",
-                        controllerName,
-                        e.getMessage(),
-                        e);
+                        "Main: cannot instantiate policy-controller {}",
+                        controllerName);
                 throw new PolicyDroolsPdpRuntimeException(
                         String.format(MessageConstants.START_FAILURE_MSG, MessageConstants.POLICY_DROOLS_PDP), e);
             } catch (final LinkageError e) {
@@ -223,10 +217,8 @@ public class Main {
                     .flush();
                 logger.warn(
                         LoggerUtil.TRANSACTION_LOG_MARKER,
-                        "Main: cannot instantiate policy-controller {} (linkage) because of {}",
-                        controllerName,
-                        e.getMessage(),
-                        e);
+                        "Main: cannot instantiate policy-controller {} (linkage)",
+                        controllerName);
                 throw new PolicyDroolsPdpRuntimeException(
                         String.format(MessageConstants.START_FAILURE_MSG, MessageConstants.POLICY_DROOLS_PDP), e);
             }