When I start the Server (from Tomcat bundle), I see the following at the end of the log:
INFO: Server startup in 10733 ms
log4j:WARN No appenders could be found for logger (org.jetel.main.runGraph).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.