As far as I understood async forks will be executed in different threads. For each activity after the fork a job will be created by the JobExecutor which maintains a pool of threads to execute jobs. However I am not sure if I understood your question correctly. If not please rephrase and clarifiy. http://docs.jboss.com/jbpm/v4/userguide/html_single/#asyncfork View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4263336#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...