I would like to observe or intercept Conversation.begin() method call in CDI in order to stock the new Conversation.getId() and list all the opened conversation.
I don't find in the spec (JSR-299) how to observe such event. I'm thinking of complex system of Extension which would perhaps use ProcessInjectionTarget or ProcessProducer or other events to do that... but I feel like it exists another simpler solution...
Hmm, these are built in beans and so can't be decorated. In CDI 1.1 you could use ProcessInjectionPoint, or add a request to issues.jboss.org/browse/CDI to be able to decorate built in beans.
So right now, not much idea, sorry.