[ONOS-4583] Union defect fix.

Change-Id: Ic31866b9a1b7bd5d8209d5d22f4292ab9c79a118
diff --git a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModule.java b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModule.java
index 5dae614..db5d060 100644
--- a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModule.java
+++ b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModule.java
@@ -36,8 +36,8 @@
 import static org.onosproject.yangutils.translator.tojava.YangJavaModelUtils.isGenerationOfCodeReq;
 import static org.onosproject.yangutils.translator.tojava.YangJavaModelUtils.isManagerCodeGenRequired;
 import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getRootPackage;
-import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.searchAndDeleteTempDir;
 import static org.onosproject.yangutils.utils.UtilConstants.SBI;
+import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.searchAndDeleteTempDir;
 
 /**
  * Represents module information extended to support java code generation.
@@ -212,7 +212,7 @@
      * @param rootNode root node of the data model
      * @return status of rpc's existence
      */
-    public boolean isNotificationChildNodePresent(YangNode rootNode) {
+    private boolean isNotificationChildNodePresent(YangNode rootNode) {
         YangNode childNode = rootNode.getChild();
 
         while (childNode != null) {
@@ -222,9 +222,6 @@
             childNode = childNode.getNextSibling();
         }
 
-        if (!getNotificationNodes().isEmpty()) {
-            return true;
-        }
-        return false;
+        return !getNotificationNodes().isEmpty();
     }
 }