--- old/src/share/vm/gc/shared/workgroup.hpp	2016-07-01 15:34:55.707055175 -0700
+++ new/src/share/vm/gc/shared/workgroup.hpp	2016-07-01 15:34:55.583055179 -0700
@@ -173,12 +173,12 @@
   // Add GC workers as needed to reach the specified number of workers.
   void add_workers(uint active_workers, bool initializing);
 
-  // Return the name of the thread in the work gang
-  char* worker_name(uint which);
-
   // Return the Ith worker.
   AbstractGangWorker* worker(uint i) const;
 
+  // Base name (without worker id #) of threads.
+  const char* group_name() { return name(); }
+
   void threads_do(ThreadClosure* tc) const;
 
   // Create a GC worker and install it into the work gang.