Are EntityManager instances pooled in JBoss EAP 6?

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Issue

When creating and using a singleton to retrieve EntityManager instances for validator code, many EntityManager instances may be created.

Does JBoss EAP 6 pool these instances (an option described in the Java Persistence API (JPA) Specification)?

Environment

Red Hat JBoss Enterprise Application Platform (EAP) 6
- Hibernate 4

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