Ok for the fix you did on the JIRA... Now, more details about my needs... After a task terminates, the process decides to follow a transition to a new task. This last one must start initializing a timer that must fire after a given timeout. This timeout must be calculated according to business informations that are provided by the finishing step. Ideally, a script expression directly given in the timer definition in the XML file could be perfect i the value formula is not too complicated. But i suppose that such a solution doesn't exist... The alternative i had tried, was to intercept the task creation event, and change the timer delay. But if i understand what you say, it seems it's not a possible solution... So what should i do ?... Thanks anyway for your help, and any new idea is welcome... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3960383#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...