Read the javadoc: aConnection.start()
Sorry, I see you already have it.
I'd suggest you post the reply logic and also check it is actually sending
the message to the queue. See "READ THIS FIRST" for how to debug.
You might also try the example on the WIKI.
thanks for your reply. Finally I found the reason, why it doesn't worked as expected. Seems like it was primarily a hot deployment problem, as my bugfixed session bean code wasn't used by the server. Instead an older code version ( without the aConnection.start() :-) was still used by the server ever after bugfixing ...
A simple server shutdown, delete of temp directory and a restart solved all problems :-)