--- old/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	2012-09-17 10:37:04.678232400 +0200
+++ new/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	2012-09-17 10:37:01.577055000 +0200
@@ -408,6 +408,9 @@
   void verify_before_gc();
   void verify_after_gc();
 
+  void log_gc_header();
+  void log_gc_footer(double pause_time_sec);
+
   // These are macros so that, if the assert fires, we get the correct
   // line number, file, etc.