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, 1 insertions, 0 deletions

diff --git a/feature-session-persistence/src/main/java/org/onap/policy/drools/persistence/PersistenceFeature.java b/feature-session-persistence/src/main/java/org/onap/policy/drools/persistence/PersistenceFeature.java
index ed427255..efe2a294 100644
--- a/feature-session-persistence/src/main/java/org/onap/policy/drools/persistence/PersistenceFeature.java
+++ b/feature-session-persistence/src/main/java/org/onap/policy/drools/persistence/PersistenceFeature.java
@@ -767,6 +767,7 @@ public class PersistenceFeature implements PolicySessionFeatureApi, PolicyEngine
                 }
             }
 
+            session.removePolicySession();
             logger.info("PersistentThreadModel completed");
         }
     }