I don't currently maintain any Java packages within Fedora but I
did
(somewhat) build the maven2 stack for EPEL[0] and I would be
interested in seeing a Java SIG happen as well as would definitely
join up.
Please everyone that is interested add yourself to
https://fedoraproject.org/wiki/SIGs/Java#Members so we can track interested
people.
I would propose creating a initial irc meeting to get stuff rolling.
Alex