[Xmonad] Java app doesn't want to display itself in xmonad

[Dave Harrison]

Hey all,

I've got a java app I want to use called JabRef for tracking research
papers (http://jabref.sourceforge.net/), but whenever I try and run it
while using xmonad I just get an empty grey window - it doesn't crash,
it just seems to sit there.

I tried starting it in KDE, and it started up successfully, so I can
rule out a java install problem.

Has anyone else had problems with Java apps (or maybe even this one)
in xmonad ?

Cheers
Dave