Hi Sergey,
The regression test fails for me on windows with NPE
java.lang.NullPointerException
at
java.desktop/sun.awt.windows.WComponentPeer.getGraphics(WComponentPeer.java:582)
at java.desktop/java.awt.Component.getGraphics(Component.java:3124)
at GetGraphicsStressTest.lambda$test$2(GetGraphicsStressTest.java:63)
at java.base/java.lang.Thread.run(Thread.java:833)
Probably we need to do a null check there in windows too.
Regards
Prasanta
On 11-Dec-19 1:02 AM, Sergey Bylokhov wrote:
Hello.
Please review the fix for JDK 14.
Bug: https://bugs.openjdk.java.net/browse/JDK-8235638
Fix: http://cr.openjdk.java.net/~serb/8235638/webrev.00
I have found a root cause of intermittent failures of some stress
tests in the JDK on macOS.
Such tests usually show/hide a lot of frames, and fails because of NPE
in the
LWWindowPeer.getOnscreenGraphics()
The reason is incorrect null check. We should read the surfaceData to
the local var apply a
null check and then use it, otherwise, the data may be changed to null
after the check.
