Ok Shane, I just put the "deployable code sample in JIRA". I used jboss-4.2.0GA, SEAM2.0.0B and hsqldb to make the test. I wrote a jpdl where there are two tasks node. The first task node is for a human, while the second is for the ws client ( I put the code of this too ). I try with this ws client, and It do well until I try to call the JBPM contest from seam. The human user has as user: stefano and as password: password. Now in Italy are 7.00pm and I go to home... perhaps tonight I come back to watch the forum... for now thanks for any advice. Ciao! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4066752#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...