Incorrect focus owner when disabling the components

This bug report is based upon NullFocusOwner2 test execution from this testrun:
http://qare.sfbay.sun.com/report/showReport?report=testrun-details&scope=vm&xml=xsl&testrunid=252450

I've a Frame with three buttons. When the first button is pressed, I'm disabling (setEnabled(true)) all the three buttons. KeyboardFocusManager.getFocusOwner method is expected to return the pressed button even after all the buttons are disabled.