CDI spec tries to dispose a container-managed entity manager. ------------------------------------------------------------- Key: CDI-523 URL: https://issues.jboss.org/browse/CDI-523 Project: CDI Specification Issues Issue Type: Bug Affects Versions: 1.2.Final, 1.1.Final Reporter: Martin Andersson Fix For: 2.0 .Final Section "3.5.2. Declaring a disposer method" has this example: {code:java} public class Resources { @PersistenceContext @Produces @UserDatabase private EntityManager em; public void close(@Disposes @UserDatabase EntityManager em) { em.close(); } } {code} The disposer method above call {{EntityManager.close()}} on a container-managed entity manager which result in an {{IllegalStateException}} being thrown *and* the entity manager remains open. This behavior is expected as the JPA specification forbids application code to close a container-managed entity manager. JPA 2.1, section "7.9.1 Container Responsibilities" says: {quote} The container must throw the IllegalStateException if the application calls EntityManager.close on a container-managed entity manager. {quote} This has been proved [here|https://github.com/MartinanderssonDotcom/java-ee-concepts/blob/maste...] and a theoretical walkthough surrounding entity managers combined with CDI scopes is available [here|https://github.com/MartinanderssonDotcom/java-ee-concepts/blob/maste...].