javax.swing.text.BadLocationException: Invalid offset=4154 not within <0, 4153>
   at org.netbeans.editor.Utilities.checkOffsetValid(Utilities.java:1388)
   at org.netbeans.editor.Utilities.checkOffsetValid(Utilities.java:1383)
   at org.netbeans.editor.Utilities.getRowStart(Utilities.java:155)
   at org.netbeans.editor.Utilities.getRowStart(Utilities.java:138)
   at org.netbeans.editor.CodeFoldingSideBar.traverseForward(CodeFoldingSideBar.java:332)
   at org.netbeans.editor.CodeFoldingSideBar.getPaintInfo(CodeFoldingSideBar.java:299)
   at org.netbeans.editor.CodeFoldingSideBar.paintComponent(CodeFoldingSideBar.java:520)
   at javax.swing.JComponent.paint(JComponent.java:1027)
   at javax.swing.JComponent.paintToOffscreen(JComponent.java:5122)
   at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:285)
   at javax.swing.RepaintManager.paint(RepaintManager.java:1128)
   at javax.swing.JComponent._paintImmediately(JComponent.java:5070)
   at javax.swing.JComponent.paintImmediately(JComponent.java:4880)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:723)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:679)
   at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:659)
   at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)
   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:125)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)