[GREENFOOT-225] Switching from default XP theme to Classic theme throws an exception
When you switch from the default XP theme to the windows classic theme (at least under windows xp) when Greenfoot is running, an exception is thrown:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at com.sun.java.swing.plaf.windows.XPStyle$Skin.getHeight(XPStyle.java:524) at com.sun.java.swing.plaf.windows.XPStyle$Skin.getHeight(XPStyle.java:528) at com.sun.java.swing.plaf.windows.WindowsSliderUI.paintTrack(WindowsSliderUI.java:118) at javax.swing.plaf.basic.BasicSliderUI.paint(BasicSliderUI.java:894) at javax.swing.plaf.ComponentUI.update(ComponentUI.java:143) at javax.swing.JComponent.paintComponent(JComponent.java:763) at javax.swing.JComponent.paint(JComponent.java:1027) at javax.swing.JComponent.paintChildren(JComponent.java:864) at javax.swing.JComponent.paint(JComponent.java:1036) at javax.swing.JComponent.paintChildren(JComponent.java:864) at javax.swing.JComponent.paint(JComponent.java:1036) at javax.swing.JComponent.paintChildren(JComponent.java:864) at javax.swing.JComponent.paint(JComponent.java:1036) at javax.swing.JComponent.paintChildren(JComponent.java:864) at javax.swing.JComponent.paint(JComponent.java:1036) at javax.swing.JComponent.paintChildren(JComponent.java:864) at javax.swing.JComponent.paint(JComponent.java:1036) at javax.swing.JLayeredPane.paint(JLayeredPane.java:564) at javax.swing.JComponent.paintChildren(JComponent.java:864) at javax.swing.JComponent.paintToOffscreen(JComponent.java:5129) at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:277) at javax.swing.RepaintManager.paint(RepaintManager.java:1217) at javax.swing.JComponent.paint(JComponent.java:1013) at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:21) at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:60) at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:97) at java.awt.Container.paint(Container.java:1780) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714) at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694) at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Everything seems to work fine, but the above exception just pops up. I doubt this will be an issue for many people (if anyone) but I noticed it by chance so thought I'd flag it up.
Issue metadata
- Issue type: Bug
- Priority: Low
- Fix versions: 1.5.2