Javadoc fixes

Change-Id: I63c3f127bbe6fef94096c46a60b057d65b69a10e
diff --git a/core/api/src/main/java/org/onosproject/net/flowobjective/FilteringObjective.java b/core/api/src/main/java/org/onosproject/net/flowobjective/FilteringObjective.java
index f6c7360..29257c6 100644
--- a/core/api/src/main/java/org/onosproject/net/flowobjective/FilteringObjective.java
+++ b/core/api/src/main/java/org/onosproject/net/flowobjective/FilteringObjective.java
@@ -130,6 +130,7 @@
         /**
          * Set meta information about this filtering condition set.
          *
+         * @param treatment traffic treatment to use
          * @return a filtering builder
          */
         Builder setMeta(TrafficTreatment treatment);