[weld-issues] [JBoss JIRA] Created: (WELD-664) Support declaration of an EntityManager resource through a passivating-scoped producer method

[Sivakumar Thyagarajan (JIRA)]

Support declaration of an EntityManager resource through a passivating-scoped producer method
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                 Key: WELD-664
                 URL: https://jira.jboss.org/browse/WELD-664
             Project: Weld
          Issue Type: Feature Request
          Components: Producers (Methods, Fields and Disposers)
    Affects Versions: 1.1.0.Beta1
         Environment: All environments
            Reporter: Sivakumar Thyagarajan


If an EntityManager resource is made available through a Producer method and the method is annotated with a passivating scope as shown below, Weld today fails
with this error message: " WELD-000053 Producers cannot declare passivating scope and return a non-serializable class"

--- producer method snippet ---
    @PersistenceUnit(unitName = "UDEMpu")
    private EntityManagerFactory emf;

    @Produces
    @ConversationScoped
    @UserDatabase
    public EntityManager create() {
        return emf.createEntityManager();
    }
--- producer method snippet ---
The current workaround is to not use a "passivating scoped" producer method  and fall back to annotating the "passivating scoped" producer field with @PersistenceContext.

Pete's idea is to enhance the user experience for a user who expects this to work by proxying the EMF and ensuring that the createEntityManager returns a proxy that is Serializable. 

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