Hallo Benjamin,
Kaffe and sablevm in their current states in Debian unstable dont work with eclipse. Current kaffe CVS does. A new release and upload of kaffe is near. Sablevm development staled a bit. I don't know its current state. For gcj: Make sure you have the gcj-4.0 and java-gcj-compat packages installed. Binutils needs to be at least 2.16.1cvs20051117-1. Trying to track down this bug: please install all eclipse-*-gcj packages and report back if this changes anything. Please delete ~/.eclipse and ~/workspace before each try to start up eclipse. Thanks for testing Michael
