--- old/src/share/vm/gc/shared/concurrentGCThread.cpp	2016-02-24 13:41:11.035424221 -0500
+++ new/src/share/vm/gc/shared/concurrentGCThread.cpp	2016-02-24 13:41:10.890426033 -0500
@@ -75,6 +75,32 @@
   }
 }
 
+void ConcurrentGCThread::run() {
+  initialize_in_thread();
+  wait_for_universe_init();
+
+  run_service();
+
+  terminate();
+}
+
+void ConcurrentGCThread::stop() {
+  // it is ok to take late safepoints here, if needed
+  {
+    MutexLockerEx mu(Terminator_lock);
+    _should_terminate = true;
+  }
+
+  stop_service();
+
+  {
+    MutexLockerEx mu(Terminator_lock);
+    while (!_has_terminated) {
+      Terminator_lock->wait();
+    }
+  }
+}
+
 static void _sltLoop(JavaThread* thread, TRAPS) {
   SurrogateLockerThread* slt = (SurrogateLockerThread*)thread;
   slt->loop();