Fix Javadoc warnings

Change-Id: Icf8b6b6f77ea80d3975aa975226a178145067adf
diff --git a/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/WideCommunityAttrHeader.java b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/WideCommunityAttrHeader.java
index e49ef71..af88863 100644
--- a/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/WideCommunityAttrHeader.java
+++ b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/WideCommunityAttrHeader.java
@@ -171,6 +171,7 @@
      *
      * @param c ChannelBuffer
      * @return object of WideCommunityAttrHeader
+     * @throws BgpParseException if a parsing error occurs
      */
     public static WideCommunityAttrHeader read(ChannelBuffer c) throws BgpParseException {
 
@@ -206,4 +207,4 @@
         // TODO Auto-generated method stub
         return 0;
     }
-}
\ No newline at end of file
+}