since a jdk14 compat class is used, I would not be surprised that can not be run on jdk6... (jbpm has not been tested on jdk6) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4027970#4027970 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4027970