afaik, states do not have 'local' variables, so once you update it in state one, state two also has access to them. Only when using tasks you get automatic local copies of the values from the time the task is created. Each task completed updates the global variable, so the last task completed is the one that 'wins'. A fork and join do not influence this at all View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4034451#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...