On Sun, 18 Oct 2020 04:31:51 GMT, Phil Race <p...@openjdk.org> wrote:
>> It does not look like the test uses any API which required the headful >> system, none of them throw a headless exception. > > if you run it locally with -Djava.awt.headless=true what happens ? > And in the bug report I see > Caused by: java.lang.NullPointerException > at > java.desktop/javax.swing.plaf.basic.LazyActionMap.installLazyActionMap(LazyActionMap.java:64) > > So installUI failed which is why there's no componentUI but why did we get > this NPE that started it ? Running -Djava.awt.headless=true passes locally. I tried running on mach5 in headless configuration also and it passes even on running several iterations. Link in JBS. It seems last time it gets NPE when executing UIManager.getLookAndFeelDefaults().put(defaultsKey, map); which indicate getLookAndFeelDefaults() returns null. But there are many instances in jdk swing code where no null check is done for this getLookAndFeelDefaults() call and it is working fine. ------------- PR: https://git.openjdk.java.net/jdk/pull/719
