--- old/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp	2012-12-30 08:48:17.000000000 +0100
+++ new/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp	2012-12-30 08:48:16.000000000 +0100
@@ -1623,7 +1623,3 @@
 const char* ParNewGeneration::name() const {
   return "par new generation";
 }
-
-bool ParNewGeneration::in_use() {
-  return UseParNewGC && ParallelGCThreads > 0;
-}