How do I stop/workaround Java apps stealing focus in Linux window managers

Question

We want to quickly prototype widgets in Java. We overlay them on top of a display written in a proprietary 3rd party graphics package. We find that the Java GUI steals keyboar

Answer 1

Finally the prototype was reworked in a JWindow rather than a JFrame, and when that JWindow had setFocusableWindowState(false) called on it Java did hand back focus... problem solved.