--- old/src/share/vm/oops/methodDataKlass.hpp	2010-10-28 13:58:32.000000000 +0200
+++ new/src/share/vm/oops/methodDataKlass.hpp	2010-10-28 13:58:32.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2010, 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
@@ -22,6 +22,11 @@
  *
  */
 
+#ifndef SHARE_VM_OOPS_METHODDATAKLASS_HPP
+#define SHARE_VM_OOPS_METHODDATAKLASS_HPP
+
+#include "oops/klass.hpp"
+
 // a methodDataKlass is the klass of a methodDataOop
 
 class methodDataKlass : public Klass {
@@ -82,3 +87,5 @@
   const char* internal_name() const;
   void oop_verify_on(oop obj, outputStream* st);
 };
+
+#endif // SHARE_VM_OOPS_METHODDATAKLASS_HPP