yang choice case translator + whitebox fix

Change-Id: I96f1855bc71a002335946150b51e911ae6ac2fb2
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/utils/io/impl/YangIoUtils.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/utils/io/impl/YangIoUtils.java
index baf6929..51ca81c 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/utils/io/impl/YangIoUtils.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/utils/io/impl/YangIoUtils.java
@@ -223,7 +223,7 @@
 
         for (File file : files) {
             Files.copy(file.toPath(),
-                    (new File(path + file.getName())).toPath(),
+                    new File(path + file.getName()).toPath(),
                     StandardCopyOption.REPLACE_EXISTING);
         }
         Resource rsc = new Resource();