java.lang.ArrayIndexOutOfBoundsException: 1475
        at org.netbeans.editor.MarkVector.update(MarkVector.java:336)
        at org.netbeans.editor.DocumentContent$Edit.undoOrRedo(DocumentContent.java:454)
        at org.netbeans.editor.DocumentContent$Edit.undo(DocumentContent.java:427)
        at org.netbeans.editor.BaseDocumentEvent.undo(BaseDocumentEvent.java:303)
        at org.netbeans.editor.GuardedDocumentEvent.undo(GuardedDocumentEvent.java:69)
        at javax.swing.undo.CompoundEdit.undo(CompoundEdit.java:0)
        at org.netbeans.editor.BaseDocument$AtomicCompoundEdit.undo(BaseDocument.java:2167)
        at javax.swing.undo.UndoManager.undoTo(UndoManager.java:0)
        at javax.swing.undo.UndoManager.undo(UndoManager.java:0)
        at org.openide.text.CloneableEditorSupport$CESUndoRedoManager.access$2901(CloneableEditorSupport.java:2963)
        at org.openide.text.CloneableEditorSupport$CESUndoRedoManager$RenderUndo.run(CloneableEditorSupport.java:3124)
        at org.netbeans.editor.GuardedDocument.runAtomic(GuardedDocument.java:294)
        at org.openide.text.CloneableEditorSupport$CESUndoRedoManager$RenderUndo.<init>(CloneableEditorSupport.java:3104)
        at org.openide.text.CloneableEditorSupport$CESUndoRedoManager$RenderUndo.<init>(CloneableEditorSupport.java:3096)
        at org.openide.text.CloneableEditorSupport$CESUndoRedoManager.undo(CloneableEditorSupport.java:2996)
        at org.netbeans.modules.xml.xam.ui.undo.FilterUndoManager.undo(FilterUndoManager.java:154)
        at org.netbeans.modules.xml.xam.ui.undo.CompoundUndoManager.undo(CompoundUndoManager.java:239)
        at org.netbeans.modules.xml.xam.ui.undo.QuietUndoManager.undo(QuietUndoManager.java:188)
        at org.netbeans.core.multiview.MultiViewPeer$DelegateUndoRedo.undo(MultiViewPeer.java:773)
        at org.openide.actions.UndoAction.performAction(UndoAction.java:177)
        at org.openide.util.actions.CallableSystemAction$1.run(CallableSystemAction.java:118)
        at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:77)
        at org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:114)
        at org.openide.windows.TopComponent.processKeyBinding(TopComponent.java:1007)
        at javax.swing.JComponent.processKeyBindings(JComponent.java:0)
        at javax.swing.JComponent.processKeyEvent(JComponent.java:0)
        at java.awt.Component.processEvent(Component.java:0)
        at java.awt.Container.processEvent(Container.java:0)
        at java.awt.Component.dispatchEventImpl(Component.java:0)
        at java.awt.Container.dispatchEventImpl(Container.java:0)
        at java.awt.Component.dispatchEvent(Component.java:0)
        at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:0)
        at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:0)
        at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:0)
        at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:0)
        at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:0)
        at java.awt.Component.dispatchEventImpl(Component.java:0)
        at java.awt.Container.dispatchEventImpl(Container.java:0)
        at java.awt.Window.dispatchEventImpl(Window.java:0)
        at java.awt.Component.dispatchEvent(Component.java:0)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:0)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:0)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:0)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:0)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:0)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:0)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:0)