[cdi-dev] [JBoss JIRA] (CDI-195) Clarify serializability requirements for extension-provided metadata

[Jozef Hartinger (Commented) (JIRA)]

    [ https://issues.jboss.org/browse/CDI-195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12644605#comment-12644605 ] 

Jozef Hartinger commented on CDI-195:
-------------------------------------

No. You can inject the metadata into a passivation capable bean. Once you passivate an instance of such bean, you have to passivate the metadata as well (since the instance holds direct references to the metadata).
                
> Clarify serializability requirements for extension-provided metadata
> --------------------------------------------------------------------
>
>                 Key: CDI-195
>                 URL: https://issues.jboss.org/browse/CDI-195
>             Project: CDI Specification Issues
>          Issue Type: Feature Request
>          Components: Portable Extensions
>    Affects Versions: 1.0
>            Reporter: Jozef Hartinger
>             Fix For: 1.1 (Proposed)
>
>
> The spec never requires an extension-provided implementation of the Bean, Interceptor, Decorator or InjectionPoint to be serializable. The implementation indicates, whether the underlying bean is passivation capable by implementing PassivationCapable, but the implementation itself does not have to be serializable.
> For both the InjectionPoint bean and Bean metadata bean the spec says: "The built-in implementation must be a passivation capable dependency". However, this is hard to guarantee if an extension provides a non-serializable implementation of a Bean/InjectionPoint interface, e.g. the following code would cause problems at passivation:
> {code:JAVA}
> public class Bar implements Serializable {
>    @Inject
>    private InjectionPoint ip;
> }
> {code}
> If the metadata of the Bar bean (Bean<Bar>) is not serializable, Bar cannot be passivated.

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