java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.nodes.Node.assignTo(Node.java:354) at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:205) at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:123) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:165) at org.openide.nodes.Children.getNodes(Children.java:469) Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.nodes.Node.assignTo(Node.java:354) at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:205) at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:123) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:165) at org.openide.nodes.Children.getNodes(Children.java:469) Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.nodes.Node.assignTo(Node.java:354) at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:205) at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:123) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:165) at org.openide.nodes.Children.getNodes(Children.java:469) Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.nodes.Node.assignTo(Node.java:354) at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:205) at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:123) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:165) at org.openide.nodes.Children.getNodes(Children.java:469) Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.nodes.Node.assignTo(Node.java:354) at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:205) at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:123) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:165) at org.openide.nodes.Children.getNodes(Children.java:469) Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.nodes.Node.assignTo(Node.java:354) at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:205) at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:123) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:165) at org.openide.nodes.Children.getNodes(Children.java:469) Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.nodes.Node.assignTo(Node.java:354) at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:205) at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:123) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:165) at org.openide.nodes.Children.getNodes(Children.java:469) Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.nodes.Node.assignTo(Node.java:354) at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:205) at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:123) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:165) at org.openide.nodes.Children.getNodes(Children.java:469) Caused: java.lang.IllegalStateException: Cannot initialize 0th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.nodes.Node.assignTo(Node.java:354) at org.openide.nodes.EntrySupportDefault.justComputeNodes(EntrySupportDefault.java:205) at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:123) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:165) at org.openide.nodes.Children.getNodes(Children.java:469) Caused: java.lang.IllegalStateException: Cannot initialize -1th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.nodes.Node.assignTo(Node.java:354) at org.openide.nodes.EntrySupportDefault.notifyAdd(EntrySupportDefault.java:578) at org.openide.nodes.EntrySupportDefault.updateAdd(EntrySupportDefault.java:434) at org.openide.nodes.EntrySupportDefault.setEntries(EntrySupportDefault.java:288) 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.nodes.AsynchChildren.run(AsynchChildren.java:221) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1452) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2032) Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.IllegalStateException: Cannot initialize -1th child of node org.netbeans.core.ide.ServicesTab$ServicesNode@315e0969[Name=, displayName=]; it already belongs to node org.netbeans.core.ide.ServicesTab$ServicesNode@3d2c689f[Name=, displayName=] (did you forgot to use cloneNode?) Children of new node: null Children of old node: null at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1493) at org.openide.nodes.AsynchChildren.addNotify(AsynchChildren.java:89) at org.openide.nodes.Children.callAddNotify(Children.java:575) at org.openide.nodes.EntrySupportDefault.getArray(EntrySupportDefault.java:632) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:114) at org.openide.nodes.EntrySupportDefault.getNodes(EntrySupportDefault.java:165) at org.openide.nodes.EntrySupportDefault.getNodesCount(EntrySupportDefault.java:169) at org.openide.nodes.Children.getNodesCount(Children.java:509) at org.openide.explorer.view.VisualizerNode.getChildren(VisualizerNode.java:258) at org.openide.explorer.view.VisualizerNode.getChildren(VisualizerNode.java:248) at org.openide.explorer.view.VisualizerNode.getChildCount(VisualizerNode.java:325) at javax.swing.tree.DefaultTreeModel.getChildCount(DefaultTreeModel.java:168) at javax.swing.tree.FixedHeightLayoutCache$FHTreeStateNode.expand(FixedHeightLayoutCache.java:1135) at javax.swing.tree.FixedHeightLayoutCache.rebuild(FixedHeightLayoutCache.java:600) at javax.swing.tree.FixedHeightLayoutCache.treeStructureChanged(FixedHeightLayoutCache.java:472) at javax.swing.plaf.basic.BasicTreeUI$Handler.treeStructureChanged(BasicTreeUI.java:3824) at javax.swing.tree.DefaultTreeModel.fireTreeStructureChanged(DefaultTreeModel.java:561) at javax.swing.tree.DefaultTreeModel.nodeStructureChanged(DefaultTreeModel.java:347) at javax.swing.tree.DefaultTreeModel.setRoot(DefaultTreeModel.java:117) at org.openide.explorer.view.NodeTreeModel$1.run(NodeTreeModel.java:122) at org.openide.util.Mutex.doEvent(Mutex.java:1343) at org.openide.util.Mutex.readAccess(Mutex.java:350) at org.openide.explorer.view.NodeTreeModel.setNode(NodeTreeModel.java:107) at org.openide.explorer.view.TreeView$4.run(TreeView.java:872) at org.openide.util.Mutex.doEvent(Mutex.java:1343) at org.openide.util.Mutex.readAccess(Mutex.java:350) at org.openide.explorer.view.TreeView.synchronizeRootContext(TreeView.java:862) at org.openide.explorer.view.TreeView.lookupExplorerManager(TreeView.java:700) at org.openide.explorer.view.TreeView.addNotify(TreeView.java:680) at java.awt.Container.addNotify(Container.java:2576) at javax.swing.JComponent.addNotify(JComponent.java:4685) at org.openide.windows.TopComponent.addNotify(TopComponent.java:281) at java.awt.Container.addImpl(Container.java:1066) at java.awt.Container.add(Container.java:363) at org.netbeans.swing.tabcontrol.plaf.StackLayout.showComponent(StackLayout.java:78) at org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI.showComponent(DefaultTabbedContainerUI.java:575) at org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI$NoOpFxProvider.doFinish(DefaultTabbedContainerUI.java:1369) at org.netbeans.swing.tabcontrol.plaf.FxProvider.finish(FxProvider.java:105) at org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI$NoOpFxProvider.doStart(DefaultTabbedContainerUI.java:1374) at org.netbeans.swing.tabcontrol.plaf.FxProvider.start(FxProvider.java:88) at org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI.showComponentWithFxProvider(DefaultTabbedContainerUI.java:604) at org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI$SelectionListener.stateChanged(DefaultTabbedContainerUI.java:1071) at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133) at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119) at org.netbeans.swing.tabcontrol.plaf.DefaultTabSelectionModel.indicesChanged(DefaultTabSelectionModel.java:276) at org.netbeans.swing.tabcontrol.DefaultTabDataModel.fireIndicesChanged(DefaultTabDataModel.java:531) at org.netbeans.swing.tabcontrol.DefaultTabDataModel.setTabs(DefaultTabDataModel.java:129) at org.netbeans.core.windows.view.ui.tabcontrol.AbstractTabbedImpl.setTopComponents(AbstractTabbedImpl.java:209) at org.netbeans.core.windows.view.ui.TabbedHandler.setTopComponents(TabbedHandler.java:164) at org.netbeans.core.windows.view.ui.AbstractModeContainer.setTopComponents(AbstractModeContainer.java:126) at org.netbeans.core.windows.view.ModeView.setTopComponents(ModeView.java:140) at org.netbeans.core.windows.view.ViewHierarchy.updateViewForAccessor(ViewHierarchy.java:279) at org.netbeans.core.windows.view.ViewHierarchy.updateViewForAccessor(ViewHierarchy.java:294) at org.netbeans.core.windows.view.ViewHierarchy.updateViewForAccessor(ViewHierarchy.java:251) at org.netbeans.core.windows.view.ViewHierarchy.updateViewHierarchy(ViewHierarchy.java:165) at org.netbeans.core.windows.view.DefaultView.changeGUI(DefaultView.java:156) at org.netbeans.core.windows.ViewRequestor.dispatchRequest(ViewRequestor.java:273) at org.netbeans.core.windows.ViewRequestor.processRequest(ViewRequestor.java:249) at org.netbeans.core.windows.ViewRequestor.postRequest(ViewRequestor.java:187) at org.netbeans.core.windows.ViewRequestor.scheduleRequest(ViewRequestor.java:127) at org.netbeans.core.windows.Central.openGroup(Central.java:1196) at org.netbeans.core.windows.TopComponentGroupImpl.open(TopComponentGroupImpl.java:78) at org.netbeans.core.windows.actions.ResetWindowsAction$1.run(ResetWindowsAction.java:158) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:646) at java.awt.EventQueue.access$000(EventQueue.java:84) at java.awt.EventQueue$1.run(EventQueue.java:607) at java.awt.EventQueue$1.run(EventQueue.java:605) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87) at java.awt.EventQueue.dispatchEvent(EventQueue.java:616) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158) 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)