--- a/hotspot/src/share/vm/gc_implementation/shared/vmGCOperations.hpp	Fri Jun 07 09:33:01 2013 -0700
+++ b/hotspot/src/share/vm/gc_implementation/shared/vmGCOperations.hpp	Mon Jun 10 11:30:51 2013 +0200
@@ -129,21 +129,18 @@
  private:
   outputStream* _out;
   bool _full_gc;
-  bool _need_prologue;
   bool _csv_format; // "comma separated values" format for spreadsheet.
   bool _print_help;
   bool _print_class_stats;
   const char* _columns;
  public:
-  VM_GC_HeapInspection(outputStream* out, bool request_full_gc,
-                       bool need_prologue) :
+  VM_GC_HeapInspection(outputStream* out, bool request_full_gc) :
     VM_GC_Operation(0 /* total collections,      dummy, ignored */,
                     GCCause::_heap_inspection /* GC Cause */,
                     0 /* total full collections, dummy, ignored */,
                     request_full_gc) {
     _out = out;
     _full_gc = request_full_gc;
-    _need_prologue = need_prologue;
     _csv_format = false;
     _print_help = false;
     _print_class_stats = false;
@@ -159,6 +156,8 @@
   void set_print_help(bool value) {_print_help = value;}
   void set_print_class_stats(bool value) {_print_class_stats = value;}
   void set_columns(const char* value) {_columns = value;}
+ protected:
+  bool collect();
 };