--- old/agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/G1CollectedHeap.java 2014-02-11 11:34:03.941495785 +0100 +++ new/agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/G1CollectedHeap.java 2014-02-11 11:34:03.817495783 +0100 @@ -51,9 +51,9 @@ static private CIntegerField summaryBytesUsedField; // G1MonitoringSupport* _g1mm; static private AddressField g1mmField; - // OldRegionSet _old_set; + // HeapRegionSet _old_set; static private long oldSetFieldOffset; - // HumongousRegionSet _humongous_set; + // HeapRegionSet _humongous_set; static private long humongousSetFieldOffset; static {