By the way, the app deploys fine on JBoss 3.0.0alpha (from CVS, checked out about two weeks ago).
Please post the whole stacktrace.
The monitoring features of jboss need jms (and therefore the TopicConncectionFactory).
Its only a guess but its possible that during deployment some monitoring information are written to a jms topic and that this causes the error.
It seems that disabling JMSBeanMonitoring on jboss-service.xml made thing almost work. The TopicConnectionFactory is gone. Now I got another problem relative to JBossCMP that I'm posting on the appropriate forum.
Anyway, thanks for the help, Heidak.