OpenAPITools / OpenAPITools/openapi-generator

[BUG] [JAVA] Cannot use oneOf as query parameter

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Issue: Bug
Dominant language
Java
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Description

Bug Report Checklist
  • Have you provided a full/minimal spec to reproduce the issue?
  • Have you validated the input using an OpenAPI validator (example)?
  • Have you tested with the latest master to confirm the issue still exists?
  • Have you searched for related issues/PRs?
  • What's the actual output vs expected output?
  • [Optional] Sponsorship to speed up the bug fix or feature request (example)
Description
openapi-generator version

7.6.0-SNAPSHOT

OpenAPI declaration file content or url
    parameters:
        name: myParameter
        in: query
        required: false
        schema:
          oneOf:
            - type: number
            - type: string

will result in name of openapi class as actual query parameter instead of my string or number

org.openapitools.client.model.myParameter

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

Start by generating a Java client from the minimal YAML declaration in the issue and inspect how the optional query parameter is represented and serialized. Compare the generated request with the expected number or string value rather than org.openapitools.client.model.myParameter. Done means oneOf query parameters generate and send the declared value correctly, with a regression check for this specification.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, openapi
Domain
api, tooling
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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