--- a/hotspot/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp	Thu Jan 03 16:28:22 2013 -0800
+++ b/hotspot/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp	Sun Dec 30 08:47:52 2012 +0100
@@ -1623,7 +1623,3 @@
 const char* ParNewGeneration::name() const {
   return "par new generation";
 }
-
-bool ParNewGeneration::in_use() {
-  return UseParNewGC && ParallelGCThreads > 0;
-}