java.lang.ClassCastException: javax.swing.JLabel cannot be cast to javax.swing.JMenuItem
   at javax.swing.plaf.metal.MetalIconFactory$MenuArrowIcon.paintIcon(MetalIconFactory.java:1886)
   at javax.swing.plaf.basic.BasicLabelUI.paint(BasicLabelUI.java:167)
   at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161)
   at javax.swing.JComponent.paintComponent(JComponent.java:778)
   at javax.swing.JComponent.paint(JComponent.java:1054)
   at javax.swing.JComponent.paintChildren(JComponent.java:887)
   at javax.swing.JComponent.paint(JComponent.java:1063)
   at javax.swing.CellRendererPane.paintComponent(CellRendererPane.java:151)
   at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:2115)
   at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:2016)
   at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:1812)
   at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161)
   at javax.swing.JComponent.paintComponent(JComponent.java:778)
   at javax.swing.JComponent.paint(JComponent.java:1054)
   at org.netbeans.core.windows.view.ui.popupswitcher.Table.paint(Table.java:565)
   at javax.swing.JComponent.paintChildren(JComponent.java:887)
   at javax.swing.JComponent.paint(JComponent.java:1063)
   at javax.swing.JViewport.paint(JViewport.java:725)
   at javax.swing.JComponent.paintChildren(JComponent.java:887)
   at javax.swing.JComponent.paint(JComponent.java:1063)
   at javax.swing.JComponent.paintChildren(JComponent.java:887)
   at javax.swing.JComponent.paint(JComponent.java:1063)
   at javax.swing.JComponent.paintChildren(JComponent.java:887)
   at javax.swing.JComponent.paint(JComponent.java:1063)
   at javax.swing.JComponent.paintChildren(JComponent.java:887)
   at javax.swing.JComponent.paint(JComponent.java:1063)
   at javax.swing.JLayeredPane.paint(JLayeredPane.java:585)
   at javax.swing.JComponent.paintChildren(JComponent.java:887)
   at javax.swing.JComponent.paint(JComponent.java:1063)
   at javax.swing.JComponent.paintToOffscreen(JComponent.java:5221)
   at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:295)
   at javax.swing.RepaintManager.paint(RepaintManager.java:1206)
   at javax.swing.JComponent._paintImmediately(JComponent.java:5169)
   at javax.swing.JComponent.paintImmediately(JComponent.java:4980)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:793)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:728)
   at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:677)
   at javax.swing.RepaintManager.access$700(RepaintManager.java:59)
   at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1621)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
   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(AccessController.java:0)
   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)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)