I want to use JBPM in my Application and a I can not change the environment of my application (Seam/Richfaces/persistence.xml), so I try to configure JBPM in that way, that it works together. I want to store my entities in JBPM Workflows. The first try was not successful, because the ProcessEngine serialized the entities as a Blob. I expected that the PE will only store the hibernate ID of my entity. So I searched in the documentation and forum, and the source code. By the way, a great work ! I found that JBPM and my application used two different hibernate sessions. And the described way was the solution. My hope is now, that this configuration is not a dead end in future versions, and You don't say "For God's sake!" this this a anti-example. May this solution is helpful for some people with similar problems. Thanks, Joerg View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4258037#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...