--- old/src/share/vm/runtime/vm_operations.hpp	2010-10-28 14:02:38.000000000 +0200
+++ new/src/share/vm/runtime/vm_operations.hpp	2010-10-28 14:02:38.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 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 +22,15 @@
  *
  */
 
+#ifndef SHARE_VM_RUNTIME_VM_OPERATIONS_HPP
+#define SHARE_VM_RUNTIME_VM_OPERATIONS_HPP
+
+#include "classfile/javaClasses.hpp"
+#include "memory/allocation.hpp"
+#include "oops/oop.hpp"
+#include "runtime/thread.hpp"
+#include "utilities/top.hpp"
+
 // The following classes are used for operations
 // initiated by a Java thread but that must
 // take place in the VMThread.
@@ -380,3 +389,5 @@
   VMOp_Type type() const { return VMOp_Exit; }
   void doit();
 };
+
+#endif // SHARE_VM_RUNTIME_VM_OPERATIONS_HPP