Well - I fixed this problem by adding the following service to the jbpm.cfg.xml file: | <service name="tx" factory="org.jbpm.tx.TxServiceFactory"/> | So, here's my question. All the documentation I saw stated that you just have to add the persistence service to use a database, but (at least in my case) this wasn't true. So, does that documentation need to be updated or did I configure my code wrong? Thanks, - Ryan View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4053263#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...