I've got a working setup on a test-box, now when i move it to the other box, which is incredibly similar: everything (including jboss-tomcat config) is configured the same on these boxes (using cfengine).But still on the 2nd I am not able to start jboss (with tomcat-config) as non-root.

More surprisingly still I get different error-messages all the time. Attach some 5 logs.