java.lang.AssertionError: 
Event: org.openide.explorer.view.VisualizerEvent$Removed
Original event: org.openide.nodes.NodeMemberEvent
current vis. nodes:
Indexes: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 
org.openide.nodes.NodeMemberEvent[node=org.netbeans.modules.viewmodel.TreeModelNode@3e02be[Name=, displayName='AWT-EventQueue-1' at line breakpoint EventDisplayerFactoryProvider.java : 27], add=false
  0 at 0 = org.netbeans.modules.viewmodel.TreeModelNode@b485ee[Name=, displayName=EventDisplayerFactoryProvider.<init>:27]
  1 at 1 = org.netbeans.modules.viewmodel.TreeModelNode@1c4df15[Name=, displayName=EventDisplayerFactoryProvider.getInstance:21]
  2 at 2 = org.netbeans.modules.viewmodel.TreeModelNode@120082[Name=, displayName=EventDetailTopComponent$DispayerFetcher.apply:142]
  3 at 3 = org.netbeans.modules.viewmodel.TreeModelNode@1df7ed8[Name=, displayName=EventDetailTopComponent$DispayerFetcher.apply:139]
  4 at 4 = org.netbean
        at org.openide.explorer.view.VisualizerChildren.removed(VisualizerChildren.java:249)
        at org.openide.explorer.view.VisualizerEvent$Removed.run(VisualizerEvent.java:132)
        at org.openide.util.Mutex.readAccess(Mutex.java:362)
        at org.openide.util.Mutex$1R.run(Mutex.java:1301)
        at org.openide.nodes.Children$ProjectManagerDeadlockDetector.execute(Children.java:1810)
        at org.openide.util.Mutex.doWrapperAccess(Mutex.java:1320)
        at org.openide.util.Mutex.readAccess(Mutex.java:351)
        at org.openide.explorer.view.VisualizerNode$QP.run(VisualizerNode.java:707)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)