[ONOS-4831] Implement op param class for apps

Change-Id: I88aee8a3009de84649c959e21ce83e3bbbf63c18
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaTypeFragmentFiles.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaTypeFragmentFiles.java
index d693381..1d31d20 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaTypeFragmentFiles.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaTypeFragmentFiles.java
@@ -332,7 +332,7 @@
          * Creates type def class file.
          */
         if ((fileType & GENERATE_TYPEDEF_CLASS) != 0) {
-            addImportsToStringAndHasCodeMethods(imports);
+            addImportsToStringAndHasCodeMethods(imports, true);
             setTypedefClassJavaFileHandle(getJavaFileHandle(getJavaClassName(TYPEDEF_CLASS_FILE_NAME_SUFFIX)));
             generateTypeDefClassFile(getTypedefClassJavaFileHandle(), curNode, imports);
         }
@@ -340,7 +340,7 @@
          * Creates type class file.
          */
         if ((fileType & GENERATE_UNION_CLASS) != 0) {
-            addImportsToStringAndHasCodeMethods(imports);
+            addImportsToStringAndHasCodeMethods(imports, true);
             setTypeClassJavaFileHandle(getJavaFileHandle(getJavaClassName(UNION_TYPE_CLASS_FILE_NAME_SUFFIX)));
             generateUnionClassFile(getTypeClassJavaFileHandle(), curNode, imports);
         }