The java.awt.event.FocusEvent class now has an isTemporary() method to check
whether the focus change is due to an indirect temporary change (the window
has been deactivated or a menu pulled down) or a permanent change (the focus
has been moved via a mouse-click in a component or a tab key press). Currently
all focus events are marked as permanent (isTemporary() returns false).

This is a bug on Solaris AND win32.