yang choice case translator + whitebox fix

Change-Id: I96f1855bc71a002335946150b51e911ae6ac2fb2
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/utils/MethodsGenerator.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/utils/MethodsGenerator.java
index 03be712..99ab915 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/utils/MethodsGenerator.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/utils/MethodsGenerator.java
@@ -373,7 +373,7 @@
     private static String getReturnType(JavaAttributeInfo attr) {
 
         String returnType = EMPTY_STRING;
-        if (attr.isQualifiedName() && (attr.getImportInfo().getPkgInfo() != null)) {
+        if (attr.isQualifiedName() && attr.getImportInfo().getPkgInfo() != null) {
             returnType = attr.getImportInfo().getPkgInfo() + PERIOD;
         }
         returnType = returnType + attr.getImportInfo().getClassInfo();