[weld-issues] [JBoss JIRA] (WELD-1131) Weld Proxies (for instance created by Producer-Method) loose Annotations put ontop of Methods of source class

[Marko Lukša (JIRA)]

    [ https://issues.jboss.org/browse/WELD-1131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12692896#comment-12692896 ] 

Marko Lukša commented on WELD-1131:
-----------------------------------

I have checked how Weld 2.0 handles this. While method annotations are visible through {{bProxy.getClass().getMethod("foo").getAnnotations()}}, class annotations aren't. So you still have to obtain the annotations through the proxy's superclass.

AFAIK there is no method in CDI that would allow you to get the actual class. You can submit a proposal for such a method to the cdi-dev mailing list, and we'll see what the experts say about it. 


                
> Weld Proxies (for instance created by Producer-Method) loose Annotations put ontop of Methods of source class
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: WELD-1131
>                 URL: https://issues.jboss.org/browse/WELD-1131
>             Project: Weld
>          Issue Type: Bug
>          Components: Reflection layer
>    Affects Versions: 1.1.8.Final
>         Environment: glassfish 3.1.2
>            Reporter: P Huber
>            Assignee: Marko Lukša
>             Fix For: 2.0.0.Alpha2
>
>         Attachments: weld-forgets-annotation_WELD-1131.7z
>
>
> I have project specific Annotations ontop of public Methods of a class.
> class Customer {
>         @MyProjectSpecificAnnotation
> 	public String getFirstName() {
> 		return firstName;
> 	}
> }
> When producing Objects of such an annotated class, like with
> class Example {
>      @Produce
>      Customer producerField;
> }
> Then at the Injection Side the Annotations "MyProjectSpecificAnnotation" is no longer available, because WELD injects a byte-code created proxy.
> class InjectionSide {
>      @Inject
>      Customer injectField; // here we get the WELD-Proxy of unpronouncable name...and no Annotations
> }
> I've used BeanIntrospector to reflect the injected Instance of class Customer. I get a set of PropertyDescriptors with a write/read Method each.
> But as allready said, none of them has the "MyProjectSpecificAnnotation".
> Could be due to the fact, that when subclassing a class, the Annotations of the super class are not available at sub class directly - But in Case of a "transparent" WELD proxy I'd expect they should be there. Probably you have to simply copy annotations during on-the-fly byte-code creation of the Proxy. The Problem is btw also true for javas built in Dynamic Proxy: using it you also loose Annotations.
> Hope you can fix that

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