Javadoc fixes

- fix missing Javadoc @param and @throw annotations
- enable checkstyle checks for method javadocs on non-private methods

Change-Id: I9a370419a699bab3225d85f2f641927600b9f11c
diff --git a/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2Pipeline.java b/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2Pipeline.java
index 4600eb8..f2fcdab 100644
--- a/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2Pipeline.java
+++ b/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2Pipeline.java
@@ -834,6 +834,7 @@
      *
      * @param fwd the forwarding objective
      * @param allowDefaultRoute allow wildcarded IPv4_DST or not
+     * @param mplsNextTable next MPLS table
      * @return A collection of flow rules, or an empty set
      */
     protected Collection<FlowRule> processEthTypeSpecificInternal(ForwardingObjective fwd,