This is hapenning in jbpm 3.1.1 and the same code is in 3.1.2 also Here is the flow: ProcessInstance.resume() -> rootToken.resume() -> Token.resume() -> resumeTaskInstances() -> TaskMgmtInstance.resume() -> TaskInstance.resume() and this is the final method which sets these two flags: isSuspended = false; isOpen = true; Which actually opens the task. Since resume of Token class is called recursively, it applies to all the tasks. Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3959353#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...