[ONOS-4616] YANG grouping linker issues fixed.

Change-Id: I741aa9ad1008c02c9a9f90cc117cd43729132129
diff --git a/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java b/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java
index 10df251..6afa8c5 100644
--- a/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java
+++ b/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java
@@ -71,6 +71,7 @@
      *
      * @return java naming conflict resolve configurations
      */
+    @Override
     public YangToJavaNamingConflictUtil getConflictResolveConfig() {
         return conflictResolveConfig;
     }
@@ -80,6 +81,7 @@
      *
      * @param conflictResolveConfig java naming conflict resolve configurations
      */
+    @Override
     public void setConflictResolveConfig(YangToJavaNamingConflictUtil conflictResolveConfig) {
         this.conflictResolveConfig = conflictResolveConfig;
     }