I tried this on Ubuntu (13.04) with the test case in the bug (BTW there
should be a regression test
along with this fix) and I get a nasty exception (as below) and the
checkbox and button don't get painted.
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at sun.java2d.pipe.ValidatePipe.copyImage(ValidatePipe.java:196)
at sun.java2d.SunGraphics2D.copyImage(SunGraphics2D.java:3232)
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3396)
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3345)
at
java.awt.Component$BltBufferStrategy.showSubRegion(Component.java:4472)
at
java.awt.Component$BltSubRegionBufferStrategy.show(Component.java:4597)
at
javax.swing.BufferStrategyPaintManager.flushAccumulatedRegion(BufferStrategyPaintManager.java:371)
at
javax.swing.BufferStrategyPaintManager.endPaint(BufferStrategyPaintManager.java:333)
at javax.swing.RepaintManager.endPaint(RepaintManager.java:1387)
at javax.swing.JComponent.paint(JComponent.java:1041)
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:1997)
at java.awt.Window.paint(Window.java:3929)
at javax.swing.RepaintManager$4.run(RepaintManager.java:851)
at javax.swing.RepaintManager$4.run(RepaintManager.java:823)
at java.security.AccessController.doPrivileged(Native Method)
at
java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at
javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:823)
at
javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:798)
at
javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:747)
at javax.swing.RepaintManager.access$1300(RepaintManager.java:65)
at
javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1751)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:759)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:712)
at java.awt.EventQueue$3.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at
java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:729)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:190)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:115)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:104)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:100)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:92)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:81)
-phil.
On 02/05/2015 03:31 AM, prasanta sadhukhan wrote:
Hi,
Please review a fix for this issue:
8039345 Strange behaviour of per-pixel translucency on linux
Bug description: https://bugs.openjdk.java.net/browse/JDK-8039345
webrev: http://cr.openjdk.java.net/~serb/prasanta/8039345/webrev.00/
Note: A wrong (PictStandardRGB24) picture format was used for
xrendering even for surface having alpha support thereby neglecting
the alpha transparency. It should be using PictStandardARGB32 or
TRANSLUCENT picture format for correct alpha support in xrendered
surface.
Regards
Prasanta
