Javadoc Fixes

Change-Id: I9107a50e32e3dc33c13b55b83418c2c91d46478b
diff --git a/apps/openstackswitching/src/main/java/org/onosproject/openstackswitching/OpenstackArpHandler.java b/apps/openstackswitching/src/main/java/org/onosproject/openstackswitching/OpenstackArpHandler.java
index a874299..afaf7a2 100644
--- a/apps/openstackswitching/src/main/java/org/onosproject/openstackswitching/OpenstackArpHandler.java
+++ b/apps/openstackswitching/src/main/java/org/onosproject/openstackswitching/OpenstackArpHandler.java
@@ -32,9 +32,9 @@
     HashMap<String, OpenstackPort> openstackPortHashMap;
 
     /**
-     * Returns OpenstackArpHandler reference.
+     * Constructs an OpenstackArpHandler.
      *
-     * @param openstackPortMap
+     * @param openstackPortMap port map
      */
     public OpenstackArpHandler(HashMap<String, OpenstackPort> openstackPortMap) {
         this.openstackPortHashMap = openstackPortMap;