Johan, The usual reason for this is code that creates a new parserFactory every place one is needed, instead of reusing one (or more). This can add ~100ms or so to the time for each parse, so (if as I suspect) it may be worth fixing for performance as well. I haven't looked at the jBPM code to see whether this theory fits. (sorry, never enough time) -Ed Staub View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4019911#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...