--- old/src/share/vm/gc_implementation/g1/g1RemSet.hpp	2013-05-28 10:04:29.640576493 +0200
+++ new/src/share/vm/gc_implementation/g1/g1RemSet.hpp	2013-05-28 10:04:29.320576501 +0200
@@ -133,7 +133,7 @@
   virtual void print_summary_info();
 
   // Print accumulated summary info from the last time called.
-  virtual void print_periodic_summary_info();
+  virtual void print_periodic_summary_info(const char* header);
 
   // Prepare remembered set for verification.
   virtual void prepare_for_verify();