--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/HotSpotTypeDataBase.java	Fri Apr 11 09:56:35 2008 -0400
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/HotSpotTypeDataBase.java	Sun Apr 13 17:43:42 2008 -0400
@@ -306,6 +306,8 @@
 
       entryAddr = entryAddr.addOffsetTo(intConstantEntryArrayStride);
     } while (nameAddr != null);
+      String symbol = "heapOopSize"; // global int constant and value is initialized at runtime.
+      addIntConstant(symbol, (int)lookupInProcess(symbol).getCIntegerAt(0, 4, false));
   }
 
   private void readVMLongConstants() {