--- old/src/share/vm/classfile/systemDictionary.hpp	2010-11-16 18:09:44.000000000 +0100
+++ new/src/share/vm/classfile/systemDictionary.hpp	2010-11-16 18:09:43.000000000 +0100
@@ -22,6 +22,17 @@
  *
  */
 
+#ifndef SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP
+#define SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP
+
+#include "classfile/classFileStream.hpp"
+#include "classfile/classLoader.hpp"
+#include "oops/objArrayOop.hpp"
+#include "oops/symbolOop.hpp"
+#include "runtime/java.hpp"
+#include "runtime/reflectionUtils.hpp"
+#include "utilities/hashtable.hpp"
+
 // The system dictionary stores all loaded classes and maps:
 //
 //   [class name,class loader] -> class   i.e.  [symbolOop,oop] -> klassOop
@@ -671,3 +682,5 @@
 
   static KlassHandle box_klass(BasicType t);
 };
+
+#endif // SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP