*** old/src/share/vm/oops/oopsHierarchy.hpp	Thu Aug 15 09:54:48 2013
--- new/src/share/vm/oops/oopsHierarchy.hpp	Thu Aug 15 09:54:47 2013

*** 1,7 ****
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.

*** 31,40 ****
--- 31,44 ----
  // OBJECT hierarchy
  // This hierarchy is a representation hierarchy, i.e. if A is a superclass
  // of B, A's representation is a prefix of B's representation.
  
  typedef juint narrowOop; // Offset instead of address for an oop within a java object
+ 
+ // If compressed klass pointers then use narrowKlass.
+ typedef juint  narrowKlass;
+ 
  typedef void* OopOrNarrowOopStar;
  typedef class   markOopDesc*                markOop;
  
  #ifndef CHECK_UNHANDLED_OOPS