You can use taskinstance.setVariableLocally(Key, object); This will be local to that taskinstance you are invoking. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4151879#4151879 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4151879