I have a MDB that calls a SLSB in onMessage() and I noticed that a lot of instances of the SLSB were being created. I wrote a quick test with the simplest case of 1 producer, 1 consumer, and 1 SLSB and threw a bunch of messages at it.
A MDB will cause 100 instances of the SLSB to be pooled when using the default pool implementation. (ThreadLocalPool?) If the SLSB in configured to use StrictMaxPool, then only 1 instance of the SLSB is created.
Are these results expected or have I broken my jboss configuration?