Well yesterday I downloaded the trunk [I assume that will be the latest code even if 1.2 is out, please let me know if it is different]. I have updated my post on JBPM with the exception that I am seeing now. http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4024040#... So now the exception is in processOperationOutputs though I don't have any output there. Thanks, Meghana View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4024391#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...