PreDestroy is not being invoked on Singleton EJB which implements SessionBean interface

Solution Verified - Updated

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP)
    • 7

Issue

  • PreDestroy callback is not being invoked on Singleton EJB which implements javax.ejb.SessionBean interface.

Resolution

Do not implement javax.ejb.SessionBean interface.

Root Cause

Singleton EJB should not implement the SessionBean interface, because it is out of specification. From the Content from jcp.org is not included.EJB 3.1 specification:

The class may implement, directly or indirectly, the javax.ejb.SessionBean interface. Except for Singleton beans.
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