java.lang.AssertionError at org.openide.text.CloneableEditor$DoInitialize.initNonVisual(CloneableEditor.java:628) at org.openide.text.CloneableEditor$DoInitialize.run(CloneableEditor.java:367) 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$SlowItem: task failed due to: java.lang.AssertionError at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1493) at org.openide.text.CloneableEditor$DoInitialize.(CloneableEditor.java:332) at org.openide.text.CloneableEditor.initialize(CloneableEditor.java:248) at org.openide.text.CloneableEditor.componentShowing(CloneableEditor.java:223) at org.netbeans.core.spi.multiview.text.MultiViewCloneableEditor.componentShowing(MultiViewCloneableEditor.java:143) at org.netbeans.core.spi.multiview.text.MultiViewEditorElement.componentShowing(MultiViewEditorElement.java:134) at org.netbeans.core.multiview.MultiViewPeer.peerComponentShowing(MultiViewPeer.java:277) at org.netbeans.core.multiview.MultiViewCloneableTopComponent.componentShowing(MultiViewCloneableTopComponent.java:129) at org.openide.windows.WindowManager.componentShowing(WindowManager.java:341) at org.netbeans.core.windows.WindowManagerImpl.componentShowing(WindowManagerImpl.java:1157) at org.netbeans.core.windows.view.DefaultView.changeGUI(DefaultView.java:168) at org.netbeans.core.windows.ViewRequestor.dispatchRequest(ViewRequestor.java:273) at org.netbeans.core.windows.ViewRequestor.processRequest(ViewRequestor.java:249) at org.netbeans.core.windows.ViewRequestor.postRequest(ViewRequestor.java:187) at org.netbeans.core.windows.ViewRequestor.scheduleRequest(ViewRequestor.java:127) at org.netbeans.core.windows.Central.removeModeTopComponent(Central.java:1004) at org.netbeans.core.windows.ModeImpl.removeTopComponent(ModeImpl.java:478) at org.netbeans.core.windows.ModeImpl.close(ModeImpl.java:286) at org.netbeans.core.windows.WindowManagerImpl.topComponentClose(WindowManagerImpl.java:1278) at org.openide.windows.TopComponent.close(TopComponent.java:561) at org.openide.windows.TopComponent.close(TopComponent.java:548) at org.netbeans.core.windows.actions.ActionUtils.closeAllDocuments(ActionUtils.java:492) at org.netbeans.core.windows.actions.CloseAllDocumentsAction.actionPerformed(CloseAllDocumentsAction.java:92) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.AbstractButton.doClick(AbstractButton.java:376) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877) at java.awt.Component.processMouseEvent(Component.java:6505) at javax.swing.JComponent.processMouseEvent(JComponent.java:3321) at java.awt.Component.processEvent(Component.java:6270) at java.awt.Container.processEvent(Container.java:2229) at java.awt.Component.dispatchEventImpl(Component.java:4861) at java.awt.Container.dispatchEventImpl(Container.java:2287) at java.awt.Component.dispatchEvent(Component.java:4687) at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4832) at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4492) at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4422) at java.awt.Container.dispatchEventImpl(Container.java:2273) at java.awt.Window.dispatchEventImpl(Window.java:2713) at java.awt.Component.dispatchEvent(Component.java:4687) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:707) at java.awt.EventQueue.access$000(EventQueue.java:101) at java.awt.EventQueue$3.run(EventQueue.java:666) at java.awt.EventQueue$3.run(EventQueue.java:664) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87) at java.awt.EventQueue$4.run(EventQueue.java:680) at java.awt.EventQueue$4.run(EventQueue.java:678) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:677) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105) at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)