Running out of memory with heavy EJB3 use on JBoss EAP

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Issue

Heap-based OutOfMemoryErrors (OOMEs) with heavy use of EJB3s due to EJB build up in ThreadLocalPools
High CPU utilization with heavy use of EJB3s
Heap dump shows org.jboss.ejb3.stateless.StatelessContainer taking up a significant percentage of the heap.

Environment

JBoss Enterprise Application Platform (EAP)
- 4.2
- 4.3
- 5.x

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