I am looking at the jBPM user guide and try to create a custom process to start playing. I am trying for example to setup a process which starts with a signal event caused by another application's message. While my intuition says this should be something trivial, I cannot find such an example. The jBPM documentation on events is not very verbose and is not accompanied by any examples. Moreover, the jBPM eclipse plugin documentation does not provide any examples of process building and the Eclipse BPMN2.0 modeller documentation provides only broken links.
Could you suggest any tutorials on jBPM process design using either one of the respective eclipse plugins (jBPM eclipse plugin or BPMN 2.0 modeller) from a developer's perspective?