java.lang.NullPointerException
   at sun.java2d.pipe.AlphaColorPipe.renderPathTile(AlphaColorPipe.java:55)
   at sun.java2d.pipe.AAShapePipe.renderTiles(AAShapePipe.java:201)
   at sun.java2d.pipe.AAShapePipe.fillParallelogram(AAShapePipe.java:102)
   at sun.java2d.pipe.PixelToParallelogramConverter.fillRectangle(PixelToParallelogramConverter.java:322)
   at sun.java2d.pipe.PixelToParallelogramConverter.fillRect(PixelToParallelogramConverter.java:115)
   at sun.java2d.pipe.ValidatePipe.fillRect(ValidatePipe.java:76)
   at sun.java2d.SunGraphics2D.fillRect(SunGraphics2D.java:2389)
   at org.netbeans.swing.tabcontrol.plaf.AquaViewTabDisplayerUI.paintTabBackground(AquaViewTabDisplayerUI.java:245)
   at org.netbeans.swing.tabcontrol.plaf.AbstractViewTabDisplayerUI.paintDisplayerBackground(AbstractViewTabDisplayerUI.java:447)
   at org.netbeans.swing.tabcontrol.plaf.AbstractViewTabDisplayerUI.paint(AbstractViewTabDisplayerUI.java:310)
   at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161)
   at javax.swing.JComponent.paintComponent(JComponent.java:777)
   at javax.swing.JComponent.paint(JComponent.java:1053)
   at javax.swing.JComponent.paintChildren(JComponent.java:886)
   at javax.swing.JComponent.paint(JComponent.java:1062)
   at org.netbeans.swing.tabcontrol.TabbedContainer.paint(TabbedContainer.java:994)
   at javax.swing.JComponent.paintChildren(JComponent.java:886)
   at javax.swing.JComponent.paint(JComponent.java:1062)
   at javax.swing.JComponent.paintChildren(JComponent.java:886)
   at javax.swing.JComponent.paint(JComponent.java:1062)
   at javax.swing.JComponent.paintChildren(JComponent.java:886)
   at javax.swing.JComponent.paint(JComponent.java:1062)
   at javax.swing.JComponent.paintChildren(JComponent.java:886)
   at javax.swing.JComponent.paint(JComponent.java:1062)
   at javax.swing.JComponent.paintChildren(JComponent.java:886)
   at javax.swing.JComponent.paint(JComponent.java:1062)
   at javax.swing.JLayeredPane.paint(JLayeredPane.java:586)
   at javax.swing.JComponent.paintChildren(JComponent.java:886)
   at javax.swing.JComponent.paint(JComponent.java:1062)
   at javax.swing.JComponent.paintChildren(JComponent.java:886)
   at javax.swing.JComponent.paint(JComponent.java:1062)
   at org.netbeans.core.windows.view.ui.MainWindow$1.paint(MainWindow.java:189)
   at javax.swing.JComponent.paintChildren(JComponent.java:886)
   at javax.swing.JComponent.paint(JComponent.java:1062)
   at javax.swing.JLayeredPane.paint(JLayeredPane.java:586)
   at javax.swing.JComponent.paintChildren(JComponent.java:886)
   at javax.swing.JComponent.paintToOffscreen(JComponent.java:5224)
   at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1532)
   at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1455)
   at javax.swing.RepaintManager.paint(RepaintManager.java:1252)
   at javax.swing.JComponent.paint(JComponent.java:1039)
   at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:39)
   at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:79)
   at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:116)
   at java.awt.Container.paint(Container.java:1973)
   at java.awt.Window.paint(Window.java:3901)
   at javax.swing.RepaintManager$3.run(RepaintManager.java:822)
   at javax.swing.RepaintManager$3.run(RepaintManager.java:794)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:794)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:769)
   at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:718)
   at javax.swing.RepaintManager.access$1100(RepaintManager.java:62)
   at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1680)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744)
   at java.awt.EventQueue.access$400(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:697)
   at java.awt.EventQueue$3.run(EventQueue.java:691)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:714)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)