1) import any group with at least two graphs
2) open any graph
3) search for a node that is not in the open graph
4) get an IllegalStateException

[INFO] java.lang.IllegalStateException: Problem in some module which uses Window System: Window System API is required to be called from AWT thread only, see http://core.netbeans.org/proposals/threading/
[INFO] at org.netbeans.core.windows.WindowManagerImpl.warnIfNotInEDT(WindowManagerImpl.java:1802)
[INFO] at org.netbeans.core.windows.WindowManagerImpl.topComponentIsOpened(WindowManagerImpl.java:1430)
[INFO] at org.openide.windows.TopComponent.isOpened(TopComponent.java:516)
[INFO] at org.openide.windows.TopComponent.isOpened(TopComponent.java:507)
[INFO] at com.sun.hotspot.igv.view.EditorInputGraphProvider.searchForward(EditorInputGraphProvider.java:77)
[INFO] at com.sun.hotspot.igv.view.NodeQuickSearch.evaluate(NodeQuickSearch.java:91)
[INFO] at org.netbeans.modules.quicksearch.CommandEvaluator$3.run(CommandEvaluator.java:242)
[INFO] at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
[INFO] at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
[INFO] at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
[INFO] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)