[Java][Jersey] Add support for BeanValidation @Valid annotation

[fuj1g0n]

Description

Java Jersey generator has same issue with swagger-api/swagger-codegen#4738 (fixed by swagger-api/swagger-codegen#7807 for jaxrs-cxf)

Without @Valid, constraint annotations will not be evaluated.
So we need to add not only constraint annotations such as @NotNull, but also @Valid.

openapi-generator version

current master (2d99836)

OpenAPI declaration file content or url

N/A

Command line used for generation

N/A

Steps to reproduce

just read the generated sample.

Related issues/PRs

• Add support for BeanValidation @Valid annotation on nested attributes swagger-api/swagger-codegen#4738
• [Jaxrs-cxf] Add bean-level cascaded beanvalidation for pojos (@Valid) fix #4738 swagger-api/swagger-codegen#7807

Suggest a fix/enhancement

https://github.com/fujigon/openapi-generator/commits/feature/java-jersey-validation-pojos

[jmini]

Related issues/PRs

I think it was also reported here: swagger-api/swagger-codegen#7651

[fuj1g0n]

Thanks for your investigation.
I read it and yes, the issue you told seems the same problem.

My understanding is that the problem is still exist both in openapi-generator and swagger-codegen.
I already filed a PR to fix this problem to openapi-generator project.

#1019
Could you kindly review it?

Thanks!