Make Logger instance final as SL4J suggests
diff --git a/src/main/java/net/floodlightcontroller/core/util/ListenerDispatcher.java b/src/main/java/net/floodlightcontroller/core/util/ListenerDispatcher.java
index 58b543c..ea63c25 100644
--- a/src/main/java/net/floodlightcontroller/core/util/ListenerDispatcher.java
+++ b/src/main/java/net/floodlightcontroller/core/util/ListenerDispatcher.java
@@ -34,7 +34,7 @@
*
*/
public class ListenerDispatcher<U, T extends IListener<U>> {
- protected static Logger logger = LoggerFactory.getLogger(ListenerDispatcher.class);
+ protected final static Logger logger = LoggerFactory.getLogger(ListenerDispatcher.class);
List<T> listeners = null;
private void visit(List<T> newlisteners, U type, HashSet<T> visited,