Extra assignment is not needed
diff --git a/src/main/java/org/apache/commons/configuration2/event/EventListenerRegistrationData.java b/src/main/java/org/apache/commons/configuration2/event/EventListenerRegistrationData.java
index b2b7282..1f2aab2 100644
--- a/src/main/java/org/apache/commons/configuration2/event/EventListenerRegistrationData.java
+++ b/src/main/java/org/apache/commons/configuration2/event/EventListenerRegistrationData.java
@@ -83,8 +83,7 @@
     @Override
     public int hashCode() {
         int result = eventType.hashCode();
-        result = HASH_FACTOR * result + listener.hashCode();
-        return result;
+        return HASH_FACTOR * result + listener.hashCode();
     }
 
     /**