OpenAPITools / OpenAPITools/openapi-generator
[BUG] [JAVA] Property "useOneOfInterfaces" seems to be ignored during generation
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- Dominant language
- Java
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Description
Description
Basically https://github.com/OpenAPITools/openapi-generator/issues/21234 but with Maven Plugin. No matter what I try to configure, any model with "oneOf" is generated as a merged class of all Models instead of a single Interface and the oneOf-types being subclasses.
This works for spring-Generator (Server) but not for java (Client).
openapi-generator version
7.12.0, 7.13.0, 7.14.0
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing Java client generation with the Maven Plugin using a model with oneOf and the useOneOfInterfaces setting, then compare the result with the working spring generator behavior. Done means the Java client generates a single interface with the oneOf types as subclasses instead of a merged model class.
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