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NetBeans build 201204150400 JDK 7u3 32-bit When switching between project groups the first time after starting the IDE, the exception below occurs. The project group is still opened correctly, and it does not happen again for subsequent switches while the IDE is running. 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$SlowItem: task failed due to at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1493) at org.openide.text.CloneableEditor$DoInitialize.<init>(CloneableEditor.java:332) at org.openide.text.CloneableEditor.initialize(CloneableEditor.java:248) at org.openide.text.CloneableEditor.componentShowing(CloneableEditor.java:223) at org.openide.windows.WindowManager.componentShowing(WindowManager.java:339) at org.netbeans.core.windows.WindowManagerImpl.componentShowing(WindowManagerImpl.java:1163) 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:1284) at org.openide.windows.TopComponent.close(TopComponent.java:561) at org.openide.windows.TopComponent.close(TopComponent.java:548) at org.netbeans.modules.project.ui.ProjectUtilities$1.doClose(ProjectUtilities.java:204) at org.netbeans.modules.project.ui.ProjectUtilities$1.access$200(ProjectUtilities.java:103) at org.netbeans.modules.project.ui.ProjectUtilities$1$1.run(ProjectUtilities.java:139) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:241) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:705) 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(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:675) 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) [catch] at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
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*** This bug has been marked as a duplicate of bug 208681 ***