The java/awt/event/KeyEvent/FunctionKeyTest.java test intermittently fails on Linux:

----------System.out:(5/47)----------
e.id=1004
e.id=403
e.id=404
e.id=403
e.id=1005
----------System.err:(16/850)----------
java.lang.RuntimeException: F12 key release is not received

        at FunctionKeyTest.main(FunctionKeyTest.java:97)

----------System.out:(5/47)----------
e.id=1004
e.id=403
e.id=404
e.id=403
e.id=1005
----------System.err:(18/940)----------
java.lang.RuntimeException: F11 key press is not received
F12 key release is not received

        at FunctionKeyTest.main(FunctionKeyTest.java:97)