Hi, I am really happy to say that my problem was solved.... the problem was with our database connections... we were using a single connection pool for accessing two different schemas...and so we introduced 2 connection pools in place of that which solved the problem..... there was NO PROBLEM with the JPDL or JBPM anyway...thanx a lot for ur concern towards the problem View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4110488#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...