HttpServiceProxyFactory returns LinkedHashMap instead of target type for method with Wildcard return type

[anaconda875]

Almost the same as #36326 but with Wildcard return type
Feign works correctly without any issue

Reproduce-able: From https://github.com/anaconda875/spring-framework please checkout commit 74f5b94 and run getWildcardReturnType test case

[anaconda875]

My fix for this: #36475
Hope that my second contribute is approved and merged

[aemini]

I was the one who opened this bug report . I tried it on the snapshot version that was supposed to be deployed, and the issue affecting me has been resolved. In this case, I think this task can be closed. Thanks.

[anaconda875]

@aemini your issue affect on method with TypeVariable return type. This issue is about method with Wildcard in return type