java.lang.AssertionError: Debugger lock taken in AWT Event Queue!
   at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl$DebuggerReentrantReadWriteLock$DebuggerReadLock.lock(JPDADebuggerImpl.java:2125)
   at org.netbeans.modules.debugger.jpda.models.JPDAThreadImpl$ThreadReentrantReadWriteLock$ThreadReadLock.lock(JPDAThreadImpl.java:2006)
   at org.netbeans.modules.debugger.jpda.models.JPDAThreadImpl.getSourcePath(JPDAThreadImpl.java:506)
   at org.netbeans.modules.debugger.jpda.ui.SourcePath.sourceAvailable(SourcePath.java:259)
   at org.netbeans.modules.debugger.jpda.ui.models.ThreadsActionsProvider.isGoToSourceSupported(ThreadsActionsProvider.java:267)
   at org.netbeans.modules.debugger.jpda.ui.models.ThreadsActionsProvider.access$100(ThreadsActionsProvider.java:73)
   at org.netbeans.modules.debugger.jpda.ui.models.ThreadsActionsProvider$2.isEnabled(ThreadsActionsProvider.java:100)
   at org.netbeans.spi.viewmodel.Models$ActionSupport.isEnabled(Models.java:618)
   at org.openide.awt.Actions$MenuBridge.updateState(Actions.java:1156)
   at org.openide.awt.Actions.connect(Actions.java:197)
   at org.openide.awt.Actions$MenuItem.<init>(Actions.java:1486)
   at org.netbeans.modules.openide.awt.DefaultAWTBridge.createPopupPresenter(DefaultAWTBridge.java:91)
   at org.openide.util.Utilities.actionsToPopup(Utilities.java:2752)
   at org.openide.util.Utilities.actionsToPopup(Utilities.java:2824)
   at org.openide.explorer.view.NodePopupFactory.createPopupMenu(NodePopupFactory.java:81)
   at org.openide.explorer.view.OutlineView$OutlinePopupFactory.createPopupMenu(OutlineView.java:1645)
   at org.openide.explorer.view.OutlineView.createPopup(OutlineView.java:844)
   at org.openide.explorer.view.OutlineView.access$600(OutlineView.java:145)
   at org.openide.explorer.view.OutlineView$PopupAdapter.showPopup(OutlineView.java:921)
   at org.openide.awt.MouseUtils$PopupMouseAdapter.maybePopup(MouseUtils.java:189)
   at org.openide.awt.MouseUtils$PopupMouseAdapter.mousePressed(MouseUtils.java:180)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:263)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
   at java.awt.Component.processMouseEvent(Component.java:6264)
   at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
   at org.netbeans.swing.outline.Outline.processMouseEvent(Outline.java:809)
   at java.awt.Component.processEvent(Component.java:6032)
   at java.awt.Container.processEvent(Container.java:2041)
   at java.awt.Component.dispatchEventImpl(Component.java:4630)
   at java.awt.Container.dispatchEventImpl(Container.java:2099)
   at java.awt.Component.dispatchEvent(Component.java:4460)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4577)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4235)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4168)
   at java.awt.Container.dispatchEventImpl(Container.java:2085)
   at java.awt.Window.dispatchEventImpl(Window.java:2478)
   at java.awt.Component.dispatchEvent(Component.java:4460)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:138)
   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)