Hi! JBSEAM-2419 (IAE when concurrently called a factory) had been solved by introducing a lock on the getInstanceFromFactory method. It turned out to cause deadlocks under some circumstances (JBSEAM-4669). So I've moved the lock deeper into the method [1]. Could someone review this change and approve it? It would be also nice if there was a lock per every factory. It might have some performance benefits. Or disadvantages. Profiling should give the answer. Thanks, Ondra [1] https://jira.jboss.org/secure/attachment/12335273/JBSEAM-2419.patch