See
http://deadlock.netbeans.org/hudson/job/trunk/7144/testReport/org.netbeans.test.ide/MemoryValidationTest/testGCProjects/?

private static org.netbeans.api.debugger.Properties org.netbeans.api.debugger.Properties.defaultProperties->
org.netbeans.api.debugger.Properties$PropertiesImpl@da466-pcs->
java.beans.PropertyChangeSupport@e33c99-listeners->
sun.awt.EventListenerAggregate@135c400-listenerList->
[Ljava.beans.PropertyChangeListener;@19a88b0-[0]->
org.netbeans.api.debugger.Properties$DelegatingProperties$DelegatingPropertyChangeListener@a8b94e-delegate->
org.netbeans.modules.debugger.jpda.actions.SmartSteppingFilterImpl$1@19adf08-this$0->
org.netbeans.modules.debugger.jpda.actions.SmartSteppingFilterImpl@1b82fa-pcs->
java.beans.PropertyChangeSupport@1e92179-listeners->
sun.awt.EventListenerAggregate@d9badc-listenerList->
[Ljava.beans.PropertyChangeListener;@a44f17-[0]->
org.netbeans.modules.debugger.jpda.actions.StepIntoNextMethod@1ff7609-debugger->
org.netbeans.modules.debugger.jpda.JPDADebuggerImpl@a2dbe8-pcs->
java.beans.PropertyChangeSupport@1eb0846-children->
java.util.Hashtable@12e37a9-table->
[Ljava.util.Hashtable$Entry;@59b8dc-[3]->
java.util.Hashtable$Entry@faff1b-value->
java.beans.PropertyChangeSupport@10c0565-listeners->
sun.awt.EventListenerAggregate@9183d7-listenerList->
[Ljava.beans.PropertyChangeListener;@fdeca-[10]->
org.netbeans.modules.debugger.jpda.ui.CodeEvaluator@1146f25-codePane->
javax.swing.JEditorPane@15a5f8f-model->
org.netbeans.modules.editor.NbEditorDocument@159400e-documentProperties->
org.netbeans.modules.editor.NbEditorDocument$2@36f80a-table->
[Ljava.util.Hashtable$Entry;@1bf638f-[26]->
java.util.Hashtable$Entry@db214d-value->
org.netbeans.api.lexer.InputAttributes@192cc8b-lp2attrs->
java.util.HashMap@b8359e-table->
[Ljava.util.HashMap$Entry;@b0fb48-[7]->
java.util.HashMap$Entry@d04ac6-value->
org.netbeans.api.lexer.InputAttributes$LPAttrs@1fddf1b-globals->
java.util.HashMap@1587c0d-table->
[Ljava.util.HashMap$Entry;@1662a2f-[3]->
java.util.HashMap$Entry@ba8c8e-value->
org.netbeans.modules.editor.NbEditorDocument@4e0124-documentProperties->
org.netbeans.modules.editor.NbEditorDocument$2@1051f82-table->
[Ljava.util.Hashtable$Entry;@1c877ec-[9]->
java.util.Hashtable$Entry@71bd65-value->
org.netbeans.modules.java.JavaDataObject@b91a50-nodeDelegate->
org.netbeans.modules.java.JavaNode@5dfc45-status->
org.netbeans.modules.java.source.usages.BuildArtifactMapperImpl$FileBuiltQueryStatusImpl@1f57f58-delegate->
org.netbeans.modules.java.j2seproject.J2SEProject$CoSAwareFileBuiltQueryImpl$StatusImpl@2dbccd-delegate->
org.netbeans.spi.project.support.ant.GlobFileBuiltQuery$StatusImpl@791775-this$0->
org.netbeans.spi.project.support.ant.GlobFileBuiltQuery@20fc3f-helper->
org.netbeans.spi.project.support.ant.AntProjectHelper@11a5c6-state->
org.netbeans.api.project.ProjectManager$ProjectStateImpl@9b7fe4-p->
org.netbeans.modules.java.j2seproject.J2SEProject@1e2e4e