When using the pooled invoker for both clustered and non clustered, the client proxy used is the same class (PooledInvokerProxy). This class uses a static map variable for storing the connection pool. Therefore, if make a call for an ejb using ha pooled invoker (say on port 4446), this connection gets put into the pool. Then if make another ejb call using the non-ha pooled invoekr, will just the same PooledInvokerProxy class, check to see if there is a connection in the pool. Since this is a static variable, will see the same one from the previous call by the ha pooled invoker (that used port 4446) and make the call using that connection.

This is a known bug in JBossAS 3.2.3. Will check all the current code base for all the source branches to see if applies.