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. -- Best regards, Sergey.
