java.lang.NullPointerException
   at org.netbeans.modules.profiler.heapwalk.OverviewController.getOOMEThread(OverviewController.java:398)
   at org.netbeans.modules.profiler.heapwalk.OverviewController.computeSummary(OverviewController.java:194)
   at org.netbeans.modules.profiler.heapwalk.ui.OverviewControllerUI$1.run(OverviewControllerUI.java:139)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)