Fix javadoc warnings

Change-Id: Iff748bf6a5b6653b515059506bb2d4f09d3c9878
diff --git a/web/api/src/main/java/org/onosproject/rest/resources/FlowsWebResource.java b/web/api/src/main/java/org/onosproject/rest/resources/FlowsWebResource.java
index f41eb98..1fdb060 100644
--- a/web/api/src/main/java/org/onosproject/rest/resources/FlowsWebResource.java
+++ b/web/api/src/main/java/org/onosproject/rest/resources/FlowsWebResource.java
@@ -244,6 +244,8 @@
 
     /**
      * Removes a batch of flow rules.
+     *
+     * @param stream stream for posted JSON
      */
     @DELETE
     @Produces(MediaType.APPLICATION_JSON)