java.lang.IndexOutOfBoundsException: Index: 3, Size: 3
   at java.util.ArrayList.RangeCheck(ArrayList.java:547)
   at java.util.ArrayList.get(ArrayList.java:322)
   at org.netbeans.swing.tabcontrol.DefaultTabDataModel.fireContentsChanged(DefaultTabDataModel.java:454)
   at org.netbeans.swing.tabcontrol.DefaultTabDataModel.setText(DefaultTabDataModel.java:159)
   at org.netbeans.swing.tabcontrol.TabbedContainer.setTitleAt(TabbedContainer.java:701)
   at org.netbeans.core.windows.view.ui.TabbedHandler.topComponentNameChanged(TabbedHandler.java:236)
   at org.netbeans.core.windows.view.ui.AbstractModeContainer.updateName(AbstractModeContainer.java:216)
   at org.netbeans.core.windows.view.ModeView.updateName(ModeView.java:169)
   at org.netbeans.core.windows.view.DefaultView.changeGUI(DefaultView.java:359)
   at org.netbeans.core.windows.ViewRequestor.dispatchRequest(ViewRequestor.java:269)
   at org.netbeans.core.windows.ViewRequestor.processRequest(ViewRequestor.java:245)
   at org.netbeans.core.windows.ViewRequestor.postRequest(ViewRequestor.java:183)
   at org.netbeans.core.windows.ViewRequestor.scheduleRequest(ViewRequestor.java:123)
   at org.netbeans.core.windows.Central.topComponentDisplayNameChanged(Central.java:1559)
   at org.netbeans.core.windows.WindowManagerImpl.topComponentDisplayNameChanged(WindowManagerImpl.java:1166)
   at org.netbeans.core.windows.WindowManagerImpl.topComponentHtmlDisplayNameChanged(WindowManagerImpl.java:1172)
   at org.openide.windows.TopComponent.setHtmlDisplayName(TopComponent.java:979)
   at org.openide.text.CloneableEditor$2.run(CloneableEditor.java:1017)
   at org.openide.util.Mutex.doEvent(Mutex.java:1335)
   at org.openide.util.Mutex.writeAccess(Mutex.java:452)
   at org.openide.text.CloneableEditor.updateName(CloneableEditor.java:1013)
   at org.openide.text.CloneableEditorSupport.updateTitles(CloneableEditorSupport.java:2362)
   at org.openide.text.DataEditorSupport.callUpdateTitles(DataEditorSupport.java:529)
   at org.openide.text.DataEditorSupport$DataNodeListener$1.run(DataEditorSupport.java:1115)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:133)
   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)