diff -r e6b1331a51d2 -r f6f3bb0ee072 src/share/vm/memory/allocation.hpp
--- a/src/share/vm/memory/allocation.hpp	Sat Sep 10 17:29:02 2011 -0700
+++ b/src/share/vm/memory/allocation.hpp	Sun Sep 11 14:48:24 2011 -0700
@@ -151,6 +151,8 @@
 //------------------------------Chunk------------------------------------------
 // Linked list of raw memory chunks
 class Chunk: public CHeapObj {
+  friend class VMStructs;
+
  protected:
   Chunk*       _next;     // Next Chunk in list
   const size_t _len;      // Size of this Chunk
@@ -200,6 +202,8 @@
   friend class ResourceMark;
   friend class HandleMark;
   friend class NoHandleMark;
+  friend class VMStructs;
+
   Chunk *_first;                // First chunk
   Chunk *_chunk;                // current chunk
   char *_hwm, *_max;            // High water mark and max in current chunk