--- old/src/share/vm/memory/genOopClosures.hpp	2010-10-28 13:57:24.000000000 +0200
+++ new/src/share/vm/memory/genOopClosures.hpp	2010-10-28 13:57:23.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2008, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 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 +22,12 @@
  *
  */
 
+#ifndef SHARE_VM_MEMORY_GENOOPCLOSURES_HPP
+#define SHARE_VM_MEMORY_GENOOPCLOSURES_HPP
+
+#include "memory/iterator.hpp"
+#include "oops/oop.hpp"
+
 class Generation;
 class HeapWord;
 class CardTableRS;
@@ -176,3 +182,5 @@
   virtual void do_oop(narrowOop* p);
   static VerifyOopClosure verify_oop;
 };
+
+#endif // SHARE_VM_MEMORY_GENOOPCLOSURES_HPP