I think you are understanding 100% what Ronald is explaining: in you Action Handler class implementation, you can simply use the jBPM ExpressionEvaluator and try to get the variable from this object using the string you use between the #{}. This way, you can use your debugger, system.out, ... whatever works for you, without having to set the #{var} in the definition. So conclusion: check out the JbpmExpressionEvaluator class. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4227484#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...