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From "Evaristo Wychoski Benfatti (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-7545) Problem to generate WADL when a implementation of generic type is used
Date Tue, 21 Nov 2017 14:17:00 GMT

    [ https://issues.apache.org/jira/browse/CXF-7545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16260779#comment-16260779
] 

Evaristo Wychoski Benfatti commented on CXF-7545:
-------------------------------------------------

I faced ordering issues before to clear the ServerProviderFactory and AbstractResourceInfo,
anyway thanks.

{code:java}
    private void setUpGenericImplementationTest() {
        ServerProviderFactory.getInstance().clearProviders();
        AbstractResourceInfo.clearAllMaps();
    }
{code}


> Problem to generate WADL when a implementation of generic type is used
> ----------------------------------------------------------------------
>
>                 Key: CXF-7545
>                 URL: https://issues.apache.org/jira/browse/CXF-7545
>             Project: CXF
>          Issue Type: Bug
>          Components: JAX-RS
>    Affects Versions: 3.1.9, 3.2.0
>         Environment: All plataforms
>            Reporter: Evaristo Wychoski Benfatti
>            Assignee: Sergey Beryozkin
>            Priority: Minor
>              Labels: patch
>             Fix For: 3.1.15, 3.2.2
>
>
> When we have the following scenario, the the wadl is not properly generated.
> {code:java}
> public abstract class BaseEntity { ... }
> public class Entity extends BaseEntity { ... }
> public abstract class SuperResource<T extends BaseEntity>
> {
>     @POST
>     @Path("/method")
>     public T resourceMethod(T param){ ... }
> }
> @Path("/resource")
> public class ChildResource extends SuperResource<Entity> { ... }
> {code}
> The generation to ChildResource only exposes the methods to {{BaseEntity}} instead of
exposing correctly the specialized type {{Entity}}.
> This problem occurs on {{rt/rs/description/src/main/java/org/apache/cxf/jaxrs/model/wadl/WadlGenerator.java}}
file when it evaluates generic types. 
> The solution is considering the TypeVariable to specialized types as follow:
> {code:java}
>                 // Line 1047 instead of this
> -                if (theActualType == Object.class && !(genericType instanceof
Class)) {
>                  // using the following lines
> +                if ((theActualType == Object.class && !(genericType instanceof
Class))
> +					|| (genericType instanceof TypeVariable)) {
> {code}



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