javax/swing/JMenuItem/ActionListenerCalledTwice/ActionListenerCalledTwiceTest.java is repeatedly failing on macOS 12

https://docs.oracle.com/en/java/javase/11/docs/api/java.desktop/java/awt/Desktop.html#setDefaultMenuBar(javax.swing.JMenuBar)

provides a menu bar that can still be accessed when there are no active frames.
This is using the system menu bar on maOS and was implemented as part of https://openjdk.java.net/jeps/272

The test effectively runs twice  once with the window active and again iconified.
It is the latter which fails because no events are delivered and  we get

Exception in thread "main" java.lang.Exception: DefaultMenuBar Test failed: ActionListener for Item1 called 0 times instead of 1!
    at ActionListenerCalledTwiceTest.testForTwice(ActionListenerCalledTwiceTest.java:114)
    at ActionListenerCalledTwiceTest.main(ActionListenerCalledTwiceTest.java:48)

It appears that in this test when the app is in the iconfied state the test is expecting the keystrokes to go
to this menu bar still. I don't know if the expecation is correct, but this isn't happening and worked in earlier versions of macOS

Also I noticed that the test doesn't exit. It appears that the call to

Desktop.getDesktop().setDefaultMenuBar(bar);

is effectively creating another visible window so the AWT thread doesn't exit.

Adding this line below allows the test to exit and should be added to the test
            SwingUtilities.invokeAndWait(() -> Desktop.getDesktop().setDefaultMenuBar(null));

One thing it I noticed tho' i that the spec of this method doesn't actually say null is allowed ..
It might be a good idea to update it - probably as a separate bug since any fix to this may need
to be backported.