--- a/hotspot/src/share/vm/services/lowMemoryDetector.hpp	Tue Nov 23 15:01:43 2010 -0500
+++ b/hotspot/src/share/vm/services/lowMemoryDetector.hpp	Tue Nov 23 13:22:55 2010 -0800
@@ -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 +22,13 @@
  *
  */
 
+#ifndef SHARE_VM_SERVICES_LOWMEMORYDETECTOR_HPP
+#define SHARE_VM_SERVICES_LOWMEMORYDETECTOR_HPP
+
+#include "memory/allocation.hpp"
+#include "services/memoryPool.hpp"
+#include "services/memoryService.hpp"
+
 // Low Memory Detection Support
 // Two memory alarms in the JDK (we called them sensors).
 //   - Heap memory sensor
@@ -283,3 +290,5 @@
     LowMemoryDetector::enable();
   }
 };
+
+#endif // SHARE_VM_SERVICES_LOWMEMORYDETECTOR_HPP