java.lang.AssertionError
   at org.netbeans.modules.web.webkit.debugging.TransportHelper.sendBlockingCommand(TransportHelper.java:113)
   at org.netbeans.modules.web.webkit.debugging.api.Runtime.evaluate(Runtime.java:117)
   at org.netbeans.modules.web.inspect.webkit.WebKitPageModel.invokeInAllDocuments(WebKitPageModel.java:662)
   at org.netbeans.modules.web.inspect.webkit.WebKitPageModel$WebPaneSynchronizer.updateSelection(WebKitPageModel.java:887)
   at org.netbeans.modules.web.inspect.webkit.WebKitPageModel$WebPaneSynchronizer.updateSelection(WebKitPageModel.java:881)
   at org.netbeans.modules.web.inspect.webkit.WebKitPageModel$WebPaneSynchronizer.updateSelection(WebKitPageModel.java:877)
   at org.netbeans.modules.web.inspect.webkit.WebKitPageModel$WebPaneSynchronizer.propertyChange(WebKitPageModel.java:809)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
   at org.netbeans.modules.web.inspect.PageModel.firePropertyChange(PageModel.java:198)
   at org.netbeans.modules.web.inspect.webkit.WebKitPageModel.setSelectedNodes(WebKitPageModel.java:490)
   at org.netbeans.modules.html.navigator.HtmlNavigatorPanelUI$22.propertyChange(HtmlNavigatorPanelUI.java:994)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
   at org.openide.explorer.ExplorerManager$2.run(ExplorerManager.java:876)
   at org.openide.util.Mutex.doEvent(Mutex.java:1343)
   at org.openide.util.Mutex.readAccess(Mutex.java:350)
   at org.openide.explorer.ExplorerManager.fireInAWT(ExplorerManager.java:873)
   at org.openide.explorer.ExplorerManager$1AtomicSetSelectedNodes.fire(ExplorerManager.java:292)
   at org.openide.explorer.ExplorerManager.setSelectedNodes(ExplorerManager.java:303)
   at org.openide.explorer.ExplorerManager$1SetExploredContextAndSelection.run(ExplorerManager.java:397)
   at org.openide.util.Mutex.readAccess(Mutex.java:367)
   at org.openide.util.Mutex$1R.run(Mutex.java:1309)
   at org.openide.util.Mutex.doWrapperAccess(Mutex.java:1326)
   at org.openide.util.Mutex.readAccess(Mutex.java:356)
   at org.openide.explorer.ExplorerManager.setExploredContextAndSelection(ExplorerManager.java:418)
   at org.openide.explorer.view.BeanTreeView.selectionChanged(BeanTreeView.java:149)
   at org.openide.explorer.view.TreeView.callSelectionChanged(TreeView.java:849)
   at org.openide.explorer.view.TreeView$TreePropertyListener.run(TreeView.java:1491)
   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.postReadRequest(Mutex.java:570)
   at org.openide.explorer.view.TreeView$TreePropertyListener.valueChanged(TreeView.java:1460)
   at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:629)
   at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(DefaultTreeSelectionModel.java:1078)
   at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(DefaultTreeSelectionModel.java:287)
   at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(DefaultTreeSelectionModel.java:170)
   at javax.swing.JTree.setSelectionPath(JTree.java:1598)
   at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(BasicTreeUI.java:2311)
   at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(BasicTreeUI.java:3520)
   at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressedDND(BasicTreeUI.java:3497)
   at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(BasicTreeUI.java:3456)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
   at java.awt.Component.processMouseEvent(Component.java:6379)
   at javax.swing.JComponent.processMouseEvent(JComponent.java:3275)
   at java.awt.Component.processEvent(Component.java:6147)
   at java.awt.Container.processEvent(Container.java:2083)
   at java.awt.Component.dispatchEventImpl(Component.java:4744)
   at java.awt.Container.dispatchEventImpl(Container.java:2141)
   at java.awt.Component.dispatchEvent(Component.java:4572)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4619)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4277)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4210)
   at java.awt.Container.dispatchEventImpl(Container.java:2127)
   at java.awt.Window.dispatchEventImpl(Window.java:2489)
   at java.awt.Component.dispatchEvent(Component.java:4572)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:704)
   at java.awt.EventQueue.access$400(EventQueue.java:82)
   at java.awt.EventQueue$2.run(EventQueue.java:663)
   at java.awt.EventQueue$2.run(EventQueue.java:661)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
   at java.awt.EventQueue$3.run(EventQueue.java:677)
   at java.awt.EventQueue$3.run(EventQueue.java:675)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:674)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)