[ONOS-4583] Union defect fix.

Change-Id: Ic31866b9a1b7bd5d8209d5d22f4292ab9c79a118
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaCodeFragmentFiles.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaCodeFragmentFiles.java
index 48f8c07..90b2daf 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaCodeFragmentFiles.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaCodeFragmentFiles.java
@@ -346,6 +346,10 @@
             getServiceTempFiles().freeTemporaryResources(isErrorOccurred);
         }
 
+        if (getEventFragmentFiles() != null) {
+            getEventFragmentFiles().freeTemporaryResources(isErrorOccurred);
+        }
+
     }
 
 }