--- a/hotspot/src/share/vm/memory/genMarkSweep.hpp	Wed Jun 04 13:51:09 2008 -0700
+++ b/hotspot/src/share/vm/memory/genMarkSweep.hpp	Thu Jun 05 15:57:56 2008 -0700
@@ -24,6 +24,7 @@
 
 class GenMarkSweep : public MarkSweep {
   friend class VM_MarkSweep;
+  friend class G1MarkSweep;
  public:
   static void invoke_at_safepoint(int level, ReferenceProcessor* rp,
                                   bool clear_all_softrefs);