RTFM http://docs.jboss.org/seam/2.0.1.CR1/reference/en/html/concepts.html#concurrency View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4113436#4113436 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4113436