[ONOS-4073] YANG enum translator implementation.

Change-Id: I129eaec0c8f81c674a994a579650f18499340052
diff --git a/src/main/java/org/onosproject/yangutils/translator/tojava/utils/TempJavaCodeFragmentFilesUtils.java b/src/main/java/org/onosproject/yangutils/translator/tojava/utils/TempJavaCodeFragmentFilesUtils.java
index adc90ef..ccb8370 100644
--- a/src/main/java/org/onosproject/yangutils/translator/tojava/utils/TempJavaCodeFragmentFilesUtils.java
+++ b/src/main/java/org/onosproject/yangutils/translator/tojava/utils/TempJavaCodeFragmentFilesUtils.java
@@ -31,6 +31,8 @@
 import static org.onosproject.yangutils.utils.UtilConstants.HAS_AUGMENTATION;
 import static org.onosproject.yangutils.utils.io.impl.FileSystemUtil.updateFileHandle;
 
+import static java.util.Collections.sort;
+
 /**
  * Represents utilities for temporary java code fragments.
  */
@@ -128,7 +130,7 @@
         } else {
             imports.remove(curImport);
         }
-        java.util.Collections.sort(imports);
+        sort(imports);
         return imports;
     }