Injecting into JSF Phase Listeners with JSF 2.2

[psirax]

I am having trouble with an application I wrote that injects an @EJB reference into a JSF phase listener. My application was originally developed and tested using a Glassfish4 server but we have decided to attempt migration to Wildfly 10. Everything works well, except for this JSF phase listener injection.

I simplified things by writing a simple JSF application that has one web page (that amounts to "Hello World"), one EJB (BasicEJB with one function, callMe(), that does nothing), and one JSF phase listener class. Here is the code for the Phase Listener.

public class TestPhaseListener implements PhaseListener {

    @EJB

    BasicEJB bjb;

    @Override

    public void afterPhase(PhaseEvent arg0) {

        bjb.callMe(); // comment me out, and I'll run just fine. Leave me here and I'll crash on a NullPointerException.

    }

    @Override

    public void beforePhase(PhaseEvent arg0) { }

    @Override

    public PhaseId getPhaseId() {

        return PhaseId.RESTORE_VIEW;

    }

}

As the comment in the code says, if I try to call the EJB's method, I get a NullPointerException. Without it, it happily does the nothing that it was designed to do.

I understand that in JSF 2.1 and before, JSF PhaseListeners do not get anything injected into them. That changed in JSF 2.2, as I understand it, and Wildfly 10 is JSF 2.2 compliant. (The JSF module file is jboss-jsf-api_2.2_spec-2.2.12.jar).

I've also tried running this test on Wildfly 8.2, who's JSF module file is jboss-jsf-api_2.2_spec-2.2.8.jar, and I get the same issue. However, this simple test project runs perfectly on GlassFish4.

My question is, do I have something misconfigured on my Wildfly server, or is this a bug? I'm at a loss of how to proceed here. I know I can use the JNDI lookup to get a reference to my object, but I'd prefer to be able to inject my EJB. Thoughts?

[tremes]

Hi Eric,

Yes I think this should work (when reading table "TABLE 5-3 JSF Artifacts Eligible for Injection" in JSF specification). Do you have some reproducer please? Did you try to inject with CDI by using @Inject?

[nickarls]

And the instantiation is normal (done by the JSF implementation)? One would think deployment would fail if the injection fails but since it's working on GF, it sounds a bit strange. And you have checked all imports that they are the normal java/javax ones for all the usual suspects?

[tremes]

I created [WFLY-6617] Cannot inject session bean with @EJB to JSF PhaseListener - JBoss Issue Tracker Note that CDI inejction with @Inject works in this case.

[psirax]

Tomas,

I was able to run my project with the @Inject annotation, thank you! Just for further information, while I was trying to discover the root cause of this issue, I ran my test code on Wildfly 9.0.2.Final as well as Wildfly 8.2.1.Final and had the same issues with the @EJB annotation in the JSF listener.

Nicklas,

Correct, the servers I used were downloaded and unzipped exactly as they come from the wildfly.org/downloads page. The test project to isolate this issue was created in Eclipse Neon for Java EE Developers. It was a basic Dynamic Web Project targeted to run a basic Facelets app that really does nothing but invoke the JSF PhaseListener and try to inject a dummy EJB into it. No new Jars were introducted, all the standard Java EE 7 jars are available.