http://java.net/jira/browse/MACOSX_PORT-603 submitted 2011/10/25 by Yuri Nesterenko
Look at the attached simple example: nothing declared here is made visible, however componentMoved() is called.
Incidentally, test fails because the action in this method implementation calls getLocationOnScreen() for, as it is, hidden component but IllegalStateException is not mandatory to catch for this method?