java.lang.ClassCastException: javax.swing.plaf.FontUIResource cannot be cast to java.awt.Color
   at javax.swing.plaf.nimbus.NimbusStyle.getColorForState(NimbusStyle.java:558)
   at javax.swing.plaf.synth.SynthStyle.getColor(SynthStyle.java:800)
   at javax.swing.plaf.synth.SynthLookAndFeel.paintRegion(SynthLookAndFeel.java:371)
   at javax.swing.plaf.synth.SynthLookAndFeel.update(SynthLookAndFeel.java:335)
   at javax.swing.plaf.synth.SynthPanelUI.update(SynthPanelUI.java:154)
   at javax.swing.JComponent.paintComponent(JComponent.java:778)
   at javax.swing.JComponent.paint(JComponent.java:1054)
   at javax.swing.JComponent.paintToOffscreen(JComponent.java:5221)
   at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1512)
   at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1443)
   at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:311)
   at javax.swing.RepaintManager.paint(RepaintManager.java:1236)
   at javax.swing.JComponent._paintImmediately(JComponent.java:5169)
   at javax.swing.JComponent.paintImmediately(JComponent.java:4980)
   at javax.swing.JComponent.paintImmediately(JComponent.java:4961)
   at javax.swing.RepaintManager$3.run(RepaintManager.java:796)
   at javax.swing.RepaintManager$3.run(RepaintManager.java:784)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:784)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:757)
   at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:706)
   at javax.swing.RepaintManager.access$1000(RepaintManager.java:62)
   at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1651)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:727)
   at java.awt.EventQueue.access$200(EventQueue.java:103)
   at java.awt.EventQueue$3.run(EventQueue.java:688)
   at java.awt.EventQueue$3.run(EventQueue.java:686)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:697)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)