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https://issues.apache.org/jira/browse/CXF-6450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14638623#comment-14638623
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Sergey Beryozkin commented on CXF-6450:
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Yes, the variation where an extra interface is interposed does not work (this
interposition which is what I referred to when talking about the complexity) -
the test is temp disabled, the case where GenericBookInterface is directly
implemented works:
http://git-wip-us.apache.org/repos/asf/cxf/commit/748a28aa
Few notes:
- you can create proxies from concrete classes (add cglib nodep)
- the proxy code does not work with GenericBookInterface only because it itself
has no typed information, hence the test which is still enabled does use
WebClient + JAXRS2.0 GenericType; (GenericBookServiceInterface is fine though
for proxies...)
There's indeed a problem with the CXF JAX-RS code introspecting the annotated
methods which are deeply inherited (more than 1 level) from generic interfaces.
I'm not sure you'd agree but I think a reasonable workaround can be found. The
patch looks good but the release is coming very shortly and I'm cautious about
merging it right now. I'll experiment a bit but most likely it would be merged
into 3.1.3-SNAPSHOT
> Bad handling of JAX-RS generic interfaces
> -----------------------------------------
>
> Key: CXF-6450
> URL: https://issues.apache.org/jira/browse/CXF-6450
> Project: CXF
> Issue Type: Bug
> Components: JAX-RS
> Affects Versions: 3.1.0
> Reporter: Vladimir Kulev
> Attachments: InjectionUtils.patch
>
>
> Here is a simple example of the code which does *not* work as intended:
> {code:java}
> interface GenericInterface<A> {
> @GET
> List<A> list();
> }
> interface ServiceInterface extends GenericInterface<String> {}
> public static class TestService implements ServiceInterface {
> @Override
> public List<String> list() {
> return new ArrayList<>();
> }
> }
> {code}
> I have found that the shape of {{InjectionUtils}} is pretty bad, so please
> accept this patch slightly improving the situation.
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