--- old/src/share/vm/memory/classify.hpp	2010-10-28 13:57:10.000000000 +0200
+++ new/src/share/vm/memory/classify.hpp	2010-10-28 13:57:09.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 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_MEMORY_CLASSIFY_HPP
+#define SHARE_VM_MEMORY_CLASSIFY_HPP
+
+#include "oops/oop.inline.hpp"
+
 typedef enum oop_type {
   unknown_type,
   instance_type,
@@ -90,3 +95,5 @@
     }
   }
 };
+
+#endif // SHARE_VM_MEMORY_CLASSIFY_HPP