diff -r d47555d7aca8 -r 2a1472c30599 src/share/vm/gc_implementation/shared/markSweep.hpp
--- a/src/share/vm/gc_implementation/shared/markSweep.hpp	Wed Mar 03 08:10:41 2010 -0800
+++ b/src/share/vm/gc_implementation/shared/markSweep.hpp	Wed Mar 03 14:48:26 2010 -0800
@@ -110,8 +110,9 @@
   // Vars
   //
  protected:
-  // Traversal stack used during phase1
+  // Traversal stacks used during phase1
   static GrowableArray<oop>*             _marking_stack;
+  static GrowableArray<ObjArrayTask>*    _objarray_stack;
   // Stack for live klasses to revisit at end of marking phase
   static GrowableArray<Klass*>*          _revisit_klass_stack;
   // Set (stack) of MDO's to revisit at end of marking phase
@@ -188,6 +189,7 @@
   template <class T> static inline void mark_and_follow(T* p);
   // Check mark and maybe push on marking stack
   template <class T> static inline void mark_and_push(T* p);
+  static inline void push_objarray(oop obj, size_t index);
 
   static void follow_stack();   // Empty marking stack.