Javadoc warning fixes

Change-Id: I30b3398b849da5d528f2bce58004d190ca17ad50
diff --git a/apps/openstacknetworking/openstackrouting/src/main/java/org/onosproject/openstacknetworking/routing/OpenstackRoutingRulePopulator.java b/apps/openstacknetworking/openstackrouting/src/main/java/org/onosproject/openstacknetworking/routing/OpenstackRoutingRulePopulator.java
index 1abcb63..4963063 100644
--- a/apps/openstacknetworking/openstackrouting/src/main/java/org/onosproject/openstacknetworking/routing/OpenstackRoutingRulePopulator.java
+++ b/apps/openstacknetworking/openstackrouting/src/main/java/org/onosproject/openstacknetworking/routing/OpenstackRoutingRulePopulator.java
@@ -508,6 +508,7 @@
      * Removes flow rules for floating ip configuration.
      *
      * @param floatingIP Corresponding floating ip information
+     * @param portInfo stored information about deleted vm
      */
     public void removeFloatingIpRules(OpenstackFloatingIP floatingIP, OpenstackPortInfo portInfo) {
         TrafficSelector.Builder sOutgoingBuilder = DefaultTrafficSelector.builder();