--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/tree/TreeMaker.java	Sat Apr 25 15:59:54 2015 +0530
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/tree/TreeMaker.java	Mon Apr 27 17:36:20 2015 +0530
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -690,7 +690,7 @@
             break;
         case WILDCARD: {
             WildcardType a = ((WildcardType) t);
-            tp = Wildcard(TypeBoundKind(a.kind), Type(a.type));
+            tp = Wildcard(TypeBoundKind(a.kind), a.kind == BoundKind.UNBOUND ? null : Type(a.type));
             break;
         }
         case CLASS: