--- a/hotspot/src/share/vm/memory/iterator.hpp	Fri Apr 11 09:56:35 2008 -0400
+++ b/hotspot/src/share/vm/memory/iterator.hpp	Sun Apr 13 17:43:42 2008 -0400
@@ -35,6 +35,8 @@
   OopClosure() : _ref_processor(NULL) { }
   virtual void do_oop(oop* o) = 0;
   virtual void do_oop_v(oop* o) { do_oop(o); }
+  virtual void do_oop(narrowOop* o) = 0;
+  virtual void do_oop_v(narrowOop* o) { do_oop(o); }
 
   // In support of post-processing of weak links of KlassKlass objects;
   // see KlassKlass::oop_oop_iterate().