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https://issues.jboss.org/browse/WELD-930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jozef Hartinger updated WELD-930:
---------------------------------
Fix Version/s: 2.0.0.Alpha2
> Producer is made an alternative if the declaring bean class is an alternative
> -----------------------------------------------------------------------------
>
> Key: WELD-930
> URL: https://issues.jboss.org/browse/WELD-930
> Project: Weld
> Issue Type: Bug
> Components: Producers (Methods, Fields and Disposers)
> Affects Versions: 1.1.0.Final
> Reporter: Alexey Kazakov
> Assignee: Marko Lukša
> Fix For: 1.2.0.Beta1, 2.0.0.Alpha2
>
>
> I'm looking at examples from
> https://github.com/pmuir/jboss-as-developer-guide/tree/master/quickstarts
> There is org.jboss.as.quickstarts.login.EJBUserManager:
> {code:title=org.jboss.as.quickstarts.login.EJBUserManager|borderStyle=solid}
> ...
> @Named("userManager")
> @RequestScoped
> @Alternative
> @Stateful
> public class EJBUserManager implements UserManager {
> ...
> @Produces
> @Named
> @RequestScoped
> public List<User> getUsers() throws Exception {
> ...
> }
> ...
> }
> {code}
> And there is also another bean
> org.jboss.as.quickstarts.login.ManagedBeanUserManager:
> {code:title=org.jboss.as.quickstarts.login.ManagedBeanUserManager|borderStyle=solid}
> ...
> @Named("userManager")
> @RequestScoped
> public class ManagedBeanUserManager implements UserManager {
> @SuppressWarnings("unchecked")
> @Produces
> @Named
> @RequestScoped
> public List<User> getUsers() throws Exception {
> ...
> }
> ...
> }
> {code}
> This code works in Weld even if EJBUserManager.getUsers() is not annotated
> @Alternative. But regarding the spec such a method has an ambiguous EL name
> "users":
> {quote}
> 5.3.1. Ambiguous EL names
> An ambiguous EL name exists in an EL expression when an EL name resolves to
> multiple beans. When an ambiguous EL
> name exists, the container attempts to resolve the ambiguity. If any of the
> beans are alternatives, the container eliminates
> all beans that are not alternatives, *except for producer methods and fields
> of beans that are alternatives*. If there is exactly
> one bean remaining, the container will select this bean, and the ambiguous EL
> name is called resolvable.
> {quote}
> There is a comment from Pete Muir:
> {quote}
> This looks to me like a bug in Weld (one that crept in from a pre-final spec
> revision) - that it checks if the declaring bean class is an alternative, and
> if it is, makes the producer an alternative. Can you file a WELD issue for
> this? I'll update the quickstart to explicitly make the producer an
> alternative.
> Pete
> {quote}
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