Yes, this is a bug in jboss ejb3.
Sorry for crying wolf. I was mistaken. Not everything is being swallowed.
I forgot to add @Begin to a method and then called a method with @End. From this I got an exception that did not seem to help much. I was hoping for somethng like.
ConversationNotBegunException: myEndMethodName that tried to end this
Is there some way I can get more meaningful messages?
I believe that I ran into other dead end exceptions that were usually due to my misconfiguration of a component, but I cannot put my finger on it now.