Inject a stateless EJB with @Inject into CDI Weld ManagedBean (JSF 1.2 EJB Application on jboss 6 AS)

Question

Currently I am trying to inject a stateless EJB into a CDI managed controller on Jboss 6 AS Final. The controller is managed in the context an accessible from the JSF pages

Answer 1

Currently there are various problems arising from the fact that WARs in EAR-Deployments don't share the same classloader. See https://issues.jboss.org/browse/JBAS-8683 for the ongoing discussion in the JBoss-AS JIRA (and vote it up :-) )

UPDATE I found this information on how to disable separate classloaders, option 1 worked for me, but be extremely careful with this. The separation of classloaders hasn't been introduced for no reason, so apparently there are new problems on the road ahead...

Answer 2

The problem was, that I built and deployed my application as an ear. Weld is working when I deploy my application as an war including all EJBs.

Answer 3

For those not having the luxury to change an ear to a war, I've found the following workaround:

• Create an EJB in the war
• Inject that EJB with the EJBs from the EJB module
• Add CDI producer methods
• Qualify @Inject with the qualifier for those producer methods:

Code:

// This bean is defined in the WEB module
@Stateless
public class EJBFactory {

    @EJB
    protected UserDAO userDAO;

    // ~X other EJBs injected here


    @Produces @EJBBean
    public UserDAO getUserDAO() {
        return userDAO;
    }

    // ~X other producer methods here
}

Now EJBs from anywhere in the EAR can be injected with:

// This bean is also defined in the web module
@RequestScoped
public class MyBean {

    @Inject @EJBBean
    private UserDAO userDAO; // injection works

    public void test() {
        userDao.getByID(...); // works
    }

}

EJBBean is a simple standard qualifier annotation. For completeness, here it is:

@Qualifier
@Retention(RUNTIME)
@Target({TYPE, METHOD, FIELD, PARAMETER})
public @interface EJBBean {

}