org.netbeans.modules.deadlock.detector.Detector$DeadlockDetectedException: Opening projects
   at org.netbeans.modules.vagrant.ui.VagrantStatusLineElement.stateChanged(VagrantStatusLineElement.java:333)
   at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133)
   at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119)
   at org.netbeans.modules.vagrant.VagrantStatusImpl.fireChange(VagrantStatusImpl.java:188)
   at org.netbeans.modules.vagrant.VagrantStatusImpl.remove(VagrantStatusImpl.java:125)
   at org.netbeans.modules.vagrant.ui.project.VagrantLookupProvider$1.projectClosed(VagrantLookupProvider.java:125)
   at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectClosed(ProjectOpenedHook.java:89)
   at org.netbeans.modules.project.ui.OpenProjectList.notifyClosed(OpenProjectList.java:1322)
   at org.netbeans.modules.project.ui.OpenProjectList.access$2600(OpenProjectList.java:137)
   at org.netbeans.modules.project.ui.OpenProjectList$14.run(OpenProjectList.java:976)
Caused: org.netbeans.modules.deadlock.detector.Detector$DeadlockDetectedException: org.netbeans.modules.vagrant.VagrantStatusImpl
Caused: org.netbeans.modules.deadlock.detector.Detector$DeadlockDetectedException: A deadlock was detected.
We suggest to restart the IDE to recover.
   at org.netbeans.modules.vagrant.VagrantStatusImpl.getAll(VagrantStatusImpl.java:90)
   at org.netbeans.modules.vagrant.ui.VagrantStatusLineElement.stateChanged(VagrantStatusLineElement.java:337)
   at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133)
   at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119)
   at org.netbeans.modules.vagrant.VagrantStatusImpl.fireChange(VagrantStatusImpl.java:188)
   at org.netbeans.modules.vagrant.VagrantStatusImpl.access$100(VagrantStatusImpl.java:72)
   at org.netbeans.modules.vagrant.VagrantStatusImpl$3.run(VagrantStatusImpl.java:161)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)