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?

Description

• I know this issue might have been raised in the past few years for several times. I have a simple openapi spec with 1 GET point to return a OneOf type of response. The generated code does not compile.
• My spec is return a contact-info which is either a email or a telephoneNumber.
• The generated code for contact-info is referring a class named OneOftelephoneNumberemail. But that class is not generated. And the maven compile failed.
• the same problem also show up for anyOf definition.

openapi-generator version

I have tried many versions including the latest release 5.1.1 and the 5.2.0-SNAPSHOT. This error shows up on all the versions.

OpenAPI declaration file content or url

https://github.com/bnlcnd/poc-anyof-oneof/blob/main/anyof-oneof.yaml

Generation Details

the POM file can be found here
https://github.com/bnlcnd/poc-anyof-oneof/blob/main/pom.xml

Steps to reproduce

• git clone the repository https://github.com/bnlcnd/poc-anyof-oneof
• run the command under the root folder of the repo :

mvn clean package

Suggest a fix

This issue seems lingering around for several years. Maybe it's time to fix it for both oneOf and anyOf.