OpenAPITools / OpenAPITools/openapi-generator
[BUG] OpenAPI 4.0.2 not able to generate anyOf models.
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- Java
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Description
Description
I have created a swagger file openapi: 3.0.0 having Account and Contact as references in anyOf something like this:
anyOf:
- $ref: "#/components/schemas/Account"
- $ref: "#/components/schemas/Contact"
openapi-generator version
4.0.2
Steps to reproduce
After running mvn generate-sources command swagger generates models in /target folder. The issue here is that swagger is not able to generate class AnyOfAccountContact which it should be.
The error looks like this:

Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the reported OpenAPI 3.0 anyOf case with mvn generate-sources and inspect the generated models under /target. Trace the generator path that handles the Account and Contact $ref entries; done means generation completes and produces the expected AnyOfAccountContact model.
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