Hi sushantgupta402. True, jbpm 3 deployed class files to the database. We discussed that for jbpm 4 but at least moved it to a later stage. Actually I thiunk it is not a good idea to deploy classes to the database. YOu could still achieve something like that if you use the JBoss deployer, but this is still experimental in the current code base. It goes in this direction: http://www.bpm-guide.de/2008/10/16/jbpm-deployer-for-jbpm-in-enterprise-e... and [url]http://www.bpm-guide.de/2008/11/14/jbpm-deployer-status-and-sourcecode/ Cheers Bernd View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4245729#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...