jBPM is an open source BPM and workflow engine under the JBoss umbrella. In contrast to other BPM engines, it can be deployed as a simple jar file in your classpath. It doesn't even need an application server. It works in any Java environment like standard Java, enterprise Java, SEAM and Spring.

Wanna know more ?

Then the jBPM Community Day in Dublin is a great opportunity. The core jBPM developers and key members of the community will be there in a relaxed atmosphere. It's just friday afternoon on June 6th. There will be some informative sessions, guinness entertainment and plenty of breaks to network and talk to others in the jBPM community. Lunch and evening meal included and it's free ! What more could you want :-)

More information can be found here : http://wiki.jboss.org/wiki/JbpmCommunityDay

You can register by simply sending an email to dublin@jbpm.org with your name in it.