Tom, Thanks! what could be the reason my execution is lost? It is immediate statement after i start process instance. Here is my code... ----------------------------------------------------------------------------------- variables.put("input", new Holder(inputObj)); processInstance = executionService.startProcessInstanceByKey("myprocess",variables); String pid = processInstance.getId(); System.out.println("PID is ... "+pid); executionService.getVariableNames(pid); String out = (String)executionService.getVariable(processInstance.getId(), "answer"); ----------------------------------------------------------------------------------- It throws exception on the last statement in the above code. I can very well get inside the method mentioned in jpdl with input arguments passing correctly. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4251658#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...