OpenAPITools / OpenAPITools/openapi-generator

[BUG] OpenAPI 4.0.2 not able to generate anyOf models.

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Inline Schema Handling Issue: Bug
Dominant language
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:
error

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First steps

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  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 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

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