--- old/src/share/vm/memory/sharedHeap.hpp	2015-04-01 13:06:09.187847644 +0200
+++ new/src/share/vm/memory/sharedHeap.hpp	2015-04-01 13:06:09.075847649 +0200
@@ -185,11 +185,6 @@
   // functions.
 
 public:
-
-  // Do anything common to GC's.
-  virtual void gc_prologue(bool full) = 0;
-  virtual void gc_epilogue(bool full) = 0;
-
   // Sets the number of parallel threads that will be doing tasks
   // (such as process roots) subsequently.
   virtual void set_par_threads(uint t);