diff -r 4d2839abc110 -r 2ec87d5043f7 hotspot/src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp
--- a/hotspot/src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp	Mon Oct 05 05:51:22 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp	Fri Oct 02 16:12:07 2009 -0400
@@ -179,4 +179,6 @@
   void clear_and_record_card_counts();
 
   static size_t thread_num();
+
+  void print_worker_threads_on(outputStream* st) const;
 };