On Sun, 26 Jul 2026 06:22:16 GMT, Prasanta Sadhukhan <[email protected]> wrote:
>> Test fails with NPE citing >> >> java.lang.NullPointerException: Cannot invoke "Object.getClass()" because >> "<local0>" is null >> at Test6505027.validate(Test6505027.java:108) >> at >> java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) >> at java.base/java.lang.reflect.Method.invoke(Method.java:583) >> at SwingTest.run(SwingTest.java:96) >> at SwingTest.start(SwingTest.java:131) >> at SwingTest.start(SwingTest.java:54) >> at Test6505027.main(Test6505027.java:67) >> >> >> which can happen when the internal frame has not received native focus yet, >> or the Robot clickâs focus transfer has not completed. The test validates >> focus owner immediately after clicking cell (1,1). >> Robot `waitForIdle` and `delay `is added after cell click to give time >> before current focus owner check is called. >> Also, explicitly activated the internal frame after it has been added to the >> desktop pane: >> Also, `instanceof` check is used instead of >> `component.getClass().equals(JComboBox.class)` because it handles null >> cleanly and does not reject a valid subclass >> >> Additionally, `press()` and `validate() `was called in separate EDT and main >> thread respectively which can cause issues like this, so made sure they are >> called in same thread as SwingTest calls static methods in main thread. >> >> >> Recurrent CI test execution is found to be ok. >> >> --------- >> - [x] I confirm that I make this contribution in accordance with the >> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). > > Prasanta Sadhukhan has updated the pull request incrementally with one > additional commit since the last revision: > > Error->RuntimeException Marked as reviewed by prr (Reviewer). ------------- PR Review: https://git.openjdk.org/jdk/pull/32019#pullrequestreview-4791890107
