--- old/agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/G1CollectedHeap.java	2014-02-11 11:36:02.089497832 +0100
+++ new/agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/G1CollectedHeap.java	2014-02-11 11:36:01.961497830 +0100
@@ -51,9 +51,9 @@
     static private CIntegerField summaryBytesUsedField;
     // G1MonitoringSupport* _g1mm;
     static private AddressField g1mmField;
-    // MasterOldRegionSet _old_set;
+    // HeapRegionSet _old_set;
     static private long oldSetFieldOffset;
-    // MasterHumongousRegionSet _humongous_set;
+    // HeapRegionSet _humongous_set;
     static private long humongousSetFieldOffset;
 
     static {