--- a/hotspot/src/share/tools/IdealGraphVisualizer/Data/src/com/sun/hotspot/igv/data/Group.java	Tue Oct 28 18:02:09 2008 -0700
+++ b/hotspot/src/share/tools/IdealGraphVisualizer/Data/src/com/sun/hotspot/igv/data/Group.java	Thu Oct 30 17:08:48 2008 -0700
@@ -37,7 +37,7 @@
  *
  * @author Thomas Wuerthinger
  */
-public class Group extends Properties.Object implements ChangedEventProvider<Group> {
+public class Group extends Properties.Entity implements ChangedEventProvider<Group> {
 
     private List<InputGraph> graphs;
     private transient ChangedEvent<Group> changedEvent;