JMS Listener within a workflow

Question

I have a JMS listener, waiting for new messages on a queue. Once there is a new message it uses that message which contains an object to begin the work flow process. The first step in the work flow calls an external engine we built that does quite a bit. At each critical point in the engine it adds a message to a topic. I want to have a listener for each one of the steps that will listen for the results to be added to the topic. Once it's there if everything is good go to the next listener and wait for the next result set. If it's bad I want to take the results and send the message to another queue and end that work flow. I'm not having much luck finding how to put a listener within the work flow. I have the listener that starts the process going fine using a Global Automatic event.
I thought the best solution would be do a subflow process at each points of them listeners. Have another global automatic event listener waiting which will then start the subflow process which stores the results and then returns which step to take back to the original process. But that didn't work it was completing all of the subflow's w/o waiting for a listener to find a message. So nothing ended up happening.
Any help?

Answer 1

That's what I figured with that global interactive I was trying to access the instance variables before so it wasn't showing up under my user. Now instead of an error pop up the error message shows up at the bottom of the runtime UI.
Error at bottom of page: (Followed by a bunch of package names)
Unexpected Error
javax.faces.el.EvaluationException: /jsf/menu/menuActionNormal.xhtml @24,147 onActivate="#{componentBean.doExecuteAction}": fuego.papi.exception.InvalidTaskNumberException: Invalid task number '0' for activity '/Manager#Default-1.0/Global'.
Warning in the Log:
There was an error when trying to obtain the environement information: null
Application: Engine, Module: Main, Thread: <0> StartUpServerIt gives me the top error when I have the notification set up to receive an external notification and gives me the warning for both cases either external notification or internal event. Its an internal event but in the documentation it never covers internal event situations for NotificationWait so I tried both.
Another thing is when I have 2 or more instances waiting at the wait how does it know which one to go too? In the real example it will be receiving an object from the thread that will have an id number. But in this little test set up how does it know which instance the global activity is for?