spring-projects / spring-projects/spring-framework

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

Open
#36,474 3 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

in: web status: waiting-for-triage
Dominant language
Java
Stars
60.2k
Forks
38.8k
Avg merge
5d 2h
Merged PRs (30d)
27

Description

Almost the same as https://github.com/spring-projects/spring-framework/issues/36326 but with Wildcard return type
Feign works correctly without any issue

Reproduce-able: From https://github.com/anaconda875/spring-framework please checkout commit 74f5b94f42454d95766d111f0817542d7c4d2f52 and run getWildcardReturnType test case

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Check out commit 74f5b94f42454d95766d111f0817542d7c4d2f52 from the linked reproduction repository and run the getWildcardReturnType test case. Compare the behavior with issue 36326; done means the HttpServiceProxyFactory method returns the target type rather than a LinkedHashMap for a wildcard return type.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, spring
Domain
api, backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.