"jBPM doesn't have a mechanism for detecting changes automatically to variable values. So if you get e.g. a serializable collection from the process variables and add an element, then you need to set the changed variable value explicitely for the changes to be saved to the DB. " http://docs.jboss.org/jbpm/v4.0/userguide/html_single/#variables or did i get it wrong ? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4250920#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...