The following test failed in the JDK21 CI:

java/awt/Modal/ModalBlockingTests/BlockingWindowsDocModal1Test.java

Here's a snippet from the log file:

#section:main
----------messages:(7/296)----------
command: main BlockingWindowsDocModal1Test
reason: User specified action: run main BlockingWindowsDocModal1Test
started: Tue May 02 03:49:59 UTC 2023
Mode: othervm
Additional options from @modules: --add-modules java.desktop
finished: Tue May 02 03:50:32 UTC 2023
elapsed time (seconds): 32.344
----------configuration:(3/40)----------
Boot Layer
  add modules: java.desktop

----------System.out:(0/0)----------
----------System.err:(15/1207)----------
java.lang.RuntimeException: DummyButton on Frame did not gain focus on clicking. A document modal dialog and its parent are visible.: expected true, was false
at jdk.test.lib.Asserts.fail(Asserts.java:594)
at jdk.test.lib.Asserts.assertTrue(Asserts.java:486)
at TestFrame.checkUnblockedFrame(TestFrame.java:338)
at BlockingWindowsDocModalTest.doTest(BlockingWindowsDocModalTest.java:144)
at BlockingWindowsDocModal1Test.main(BlockingWindowsDocModal1Test.java:49)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1592)

JavaTest Message: Test threw exception: java.lang.RuntimeException: DummyButton on Frame did not gain focus on clicking. A document modal dialog and its parent are visible.: expected true, was false
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: DummyButton on Frame did not gain focus on clicking. A document modal dialog and its parent are visible.: expected true, was false
----------rerun:(44/8188)*----------