Using 3.1.2-SNAPSHOTThe 'mx4j-tools.jar' (http://mx4j.sourceforge.net/) seems to be a requirement for ActiveMQ 4.x in OpenEJB irrespective of the useJmx=false setting .
Turning on debug for ActiveMQ shows a trace: java.lang.ClassNotFoundException: mx4j.tools.naming.NamingService Regards, Andy.
