The java/awt/Focus/WindowUpdateFocusabilityTest/WindowUpdateFocusabilityTest.java test fails in 17u and 11u on Linux:

----------System.out:(3/212)----------
java.awt.event.FocusEvent[FOCUS_GAINED,permanent,opposite=null,cause=ACTIVATION] on button0
Clicking java.awt.Button[button1,0,0,100x100,label=button1]
Clicking java.awt.Button[button0,0,0,100x100,label=button2]
----------System.err:(15/1038)----------
java.lang.RuntimeException: Test failed: window2 is not focusable!
        at WindowUpdateFocusabilityTest.test(WindowUpdateFocusabilityTest.java:128)
        at WindowUpdateFocusabilityTest.start(WindowUpdateFocusabilityTest.java:66)
        at WindowUpdateFocusabilityTest.main(WindowUpdateFocusabilityTest.java:54)
        at ...

I was able to reproduce the failure in CI.

The test is problem-listed in 17u and 11u referencing JDK-8202926 which is now closed but without a fix, the changeset just removes the test from ProblemList.txt.