[BUG][SPRING] Default value for query parameter not exported to code and doc

[marikori]

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• What's the version of OpenAPI Generator used?
• Have you search for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Bounty to sponsor the fix (example)

Description

openapi: 3.0.0
Default value for query parameter not exported to code and doc.

openapi-generator version

Current, available in https://app.swaggerhub.com

OpenAPI declaration file content or url

https://app.swaggerhub.com/apis/marikori/default_value_bug/1.0.0

Command line used for generation

Use swaggerhub UI to generate documentation - Export -> Documentation -> html2:

Use swaggerhub UI to generate code - Export -> Server Stub -> spring:

Steps to reproduce

1. Define default value for parameter in OAS - line 14 (dafault = 0 for par1) in https://app.swaggerhub.com/apis/marikori/default_value_bug/1.0.0
2. Export html2 documentation using codegen available in swaggerbub (see above).
3. Export Spring server code using codegen available in swaggerbub (see above).

Results:
2. Default value not defined in exported documentation.
3. Default value not define in exported code.

exported_code_and_doc.tar.gz

Related issues/PRs

Suggest a fix

[macjohnny]

swaggerhub uses swagger-codegen. this project is a fork of swagger codegen.
did you try generating the code with openapi-generator with one of the options mentionned in https://openapi-generator.tech/#try ?

[macjohnny]

or e.g. http://api.openapi-generator.tech/index.html

[marikori]

Tested with openapi-generator. Exported code contains default value definition, however doc doesn't.