I was trying to get fedora-ds installed/setup on an fedora core 5 box
but startconsole kept bombing out with errors like:
Warning: Out of Memory! Returning NIL!
I installed installed sun's jre-1.5 under /usr/lib/jvm/jre1.5.0_06 and
created a syml/ink from /etc/alternatives/java ->
/usr/lib/jvm/jre1.5.0_06/bin/java and that fixed it.
Hope it helps someone else