Let's say this is the workflow: [img]http://img198.imageshack.us/img198/9325/screenshotukr.png[/img] <process name="phoneCheckProcess" key="PCP" xmlns="http://jbpm.org/4.0/jpdl"> | <start g="72,187,48,48" name="start"> | <transition to="phoneCheck"/> | </start> | | <state continue="async" g="211,178,92,52" name="phoneCheck"> | <on event="start"> | <event-listener class="eventListener.MyEventListener"/> | </on> | <transition to="proceed"/> | </state> | <state g="390,181,92,52" name="proceed"> | <transition to="end"/> | </state> | <end g="601,186,48,48" name="end" state="finished"/> | </process> When execution reaches MyEventListener, I call a web-service that is asynchronous (for testing purposes i use a mock). When that function completes, it calls a callbackHandler. I have a class that keeps a static processEngine so that I can access it from my test case and callback handler. In my test case; ProcessInstance processInstance = MyController.getInstance().getExecutionService().startProcessInstanceByKey("PCP"); | Execution executionInQuery = processInstance.findActiveExecutionIn("phoneCheck"); | assertNotNull("Supposed to be <phoneCheck>", executionInQuery); Here, things go like this. The web-service is called, and it calls the calbackHandler. The callback handler, accesses the static Process engine and does the following: ProcessInstance instance = getInstance().getExecutionService().signalExecutionById(executionId); where execution id is retrieved from the eventListener. Now this gives me the exception that the executionId does not exist. I cannot figure this out. I have been trying various things here, but it still doesn't work. Any help or ideas would be greatly appreciated. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4242178#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...