--- old/src/share/vm/gc/g1/concurrentMarkThread.hpp	2016-03-15 11:56:14.835981982 +0100
+++ new/src/share/vm/gc/g1/concurrentMarkThread.hpp	2016-03-15 11:56:14.718977078 +0100
@@ -56,15 +56,10 @@
   void run_service();
   void stop_service();
 
-  static SurrogateLockerThread*         _slt;
-
  public:
   // Constructor
   ConcurrentMarkThread(G1ConcurrentMark* cm);
 
-  static void makeSurrogateLockerThread(TRAPS);
-  static SurrogateLockerThread* slt() { return _slt; }
-
   // Total virtual time so far for this thread and concurrent marking tasks.
   double vtime_accum();
   // Marking virtual time so far this thread and concurrent marking tasks.