Ambiguous EL names in case of producers of alternative bean classes

...
@Named("userManager")
@RequestScoped
@Alternative
@Stateful
public class EJBUserManager implements UserManager {
...
    @Produces
    @Named
    @RequestScoped
    public List<User> getUsers() throws Exception {
        ...
    }
...
}

...
@Named("userManager")
@RequestScoped
public class ManagedBeanUserManager implements UserManager {

   @SuppressWarnings("unchecked")
   @Produces
   @Named
   @RequestScoped
   public List<User> getUsers() throws Exception {
       ...
   }
...
}