java.lang.IllegalStateException: Somebody changed internal state meanwhile!
Expected: Inited: true
Thread: Thread[AWT-EventQueue-0,6,IDE Main]
InProgress: true
MustNotify: false
Entries: 0; vis. entries: 0; Infos: 0; entriesSize: 0; entryToInfoSize: 0


current : Inited: true
Thread: null
InProgress: true
MustNotify: false
Entries: 0; vis. entries: 0; Infos: 0; entriesSize: 0; entryToInfoSize: 0


   at org.openide.nodes.EntrySupportLazy.setState(EntrySupportLazy.java:87)
   at org.openide.nodes.EntrySupportLazy.setEntries(EntrySupportLazy.java:499)
   at org.openide.nodes.EntrySupport.setEntries(EntrySupport.java:83)
   at org.openide.nodes.FilterNode$Children$LazySupport.updateEntries(FilterNode.java:1840)
   at org.openide.nodes.FilterNode$Children$LazySupport.access$500(FilterNode.java:1719)
   at org.openide.nodes.FilterNode$Children$LazySupport$1.run(FilterNode.java:1815)
   at org.openide.util.Mutex.leaveImpl(Mutex.java:908)
   at org.openide.util.Mutex.leave(Mutex.java:841)
   at org.openide.util.Mutex$Privileged.exitReadAccess(Mutex.java:1683)
   at org.openide.nodes.Node.fireSubNodesChangeIdx(Node.java:1176)
   at org.openide.nodes.EntrySupportLazy.fireSubNodesChangeIdx(EntrySupportLazy.java:609)
   at org.openide.nodes.EntrySupportLazy.setEntries(EntrySupportLazy.java:511)
   at org.openide.nodes.EntrySupport.setEntries(EntrySupport.java:83)
   at org.openide.nodes.Children$Keys$2.run(Children.java:1556)
   at org.openide.util.Mutex$1Exec.run(Mutex.java:1246)
   at org.openide.nodes.Children$ProjectManagerDeadlockDetector.execute(Children.java:1921)
   at org.openide.util.Mutex.postRequest(Mutex.java:1252)
   at org.openide.util.Mutex.postRequest(Mutex.java:1215)
   at org.openide.util.Mutex.postWriteRequest(Mutex.java:587)
   at org.openide.nodes.Children$Keys.applyKeys(Children.java:1565)
   at org.openide.nodes.Children$Keys.setKeys(Children.java:1509)
   at org.openide.loaders.FolderChildren.access$600(FolderChildren.java:73)
   at org.openide.loaders.FolderChildren$1R.run(FolderChildren.java:188)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1452)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2032)