Conditional Envers Auditing

I have a requirement where I want to audit records only on change of Status field. I've followed documentation chapter tutorial "15.8. Conditional auditing".

Step 1: Turn off automatic Envers event listeners registration. I have following:

<prop key="hibernate.listeners.envers.autoRegister">false</prop>

Step 2: Create subclasses for appropriate event listeners.

public class DeleteEnversListener extends EnversPostDeleteEventListenerImpl {   
    private static final long serialVersionUID = 5906427978349712224L;
    private static Log log = LogFactory.getLog(DeleteEnversListener.class);

    public DeleteEnversListener(AuditConfiguration enversConfiguration) {
        super(enversConfiguration);
    }

    @Override
    public void onPostDelete(PostDeleteEvent event) {
        log.info("!!! just logging entity !! "+ event.getEntity());
        super.onPostDelete(event);
    }   
}

In similar way, I have

• InsertEnversListener
• UpdateEnversListener
• DeleteEnversListener
• CollectionRecreateEnversListener
• PreCollectionRemoveEnversListener
• PreCollectionUpdateEnversListener

Step 3: Create your own implementation of org.hibernate.integrator.spi.Integrator

public class CustomEnversIntegrator extends EnversIntegrator   {

    private static Log log = LogFactory.getLog(CustomEnversIntegrator.class);

    @Override
    public void integrate(Configuration configuration,
            SessionFactoryImplementor sessionFactory,
            SessionFactoryServiceRegistry serviceRegistry) {

        super.integrate(configuration, sessionFactory, serviceRegistry);
        final AuditConfiguration enversConfiguration = AuditConfiguration.getFor( configuration, serviceRegistry.getService( ClassLoaderService.class ) );
        EventListenerRegistry listenerRegistry = serviceRegistry.getService( EventL