*** old/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	Wed Feb  6 15:32:10 2013
--- new/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	Wed Feb  6 15:32:10 2013

*** 35,44 ****
--- 35,45 ----
  #include "gc_implementation/shared/hSpaceCounters.hpp"
  #include "gc_implementation/shared/parGCAllocBuffer.hpp"
  #include "memory/barrierSet.hpp"
  #include "memory/memRegion.hpp"
  #include "memory/sharedHeap.hpp"
+ #include "utilities/stack.hpp"
  
  // A "G1CollectedHeap" is an implementation of a java heap for HotSpot.
  // It uses the "Garbage First" heap organization and algorithm, which
  // may combine concurrent marking with parallel, incremental compaction of
  // heap subsets that will yield large amounts of garbage.

*** 877,888 ****
--- 878,889 ----
    // forwarding pointers to themselves.  Reset them.
    void remove_self_forwarding_pointers();
  
    // When one is non-null, so is the other.  Together, they each pair is
    // an object with a preserved mark, and its mark value.
!   GrowableArray<oop>*     _objs_with_preserved_marks;
!   GrowableArray<markOop>* _preserved_marks_of_objs;
!   Stack<oop, mtGC>     _objs_with_preserved_marks;
!   Stack<markOop, mtGC> _preserved_marks_of_objs;
  
    // Preserve the mark of "obj", if necessary, in preparation for its mark
    // word being overwritten with a self-forwarding-pointer.
    void preserve_mark_if_necessary(oop obj, markOop m);