see the doc at:
http://solaris.eng/accessibility/dashboard/forms/JaWSJaWSJavaWebStart.html

section (c) says:
    A well-defined on-screen indication of the current focus shall be
    provided that moves among interactive interface elements as the input
    focus changes. The focus shall be programmatically exposed so that
    assistive technology can track focus and focus changes.
    
    comments:
    JaWS has instances where this is not true.

We must find out where this is not true and address it.