14432: Do not add @Valid to Java types in "jaxrs-spec" generator

[anatoliy-balakirev]

@Valid annotation is only needed for objects, where the cascading validation is required. For standard Java types and enums it is useless. Moreover, when those annotations are there for those types - Hibernate Validator's performance degrades significantly (see: https://hibernate.atlassian.net/browse/HV-1928 and https://hibernate.atlassian.net/browse/HV-1933). I've checked other available generators, and it looks like spring generates those annotations properly. So I took the content of the modified files from that generator and placed to the jaxrs-spec one.

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[wing328]

@anatoliy-balakirev can you please resolve the merge conflicts when you've time?

[anatoliy-balakirev]

Hi @wing328. I created this PR 4 months ago and it was never reviewed ever since. I don't want to spend more time on something, which seems to be not needed, sorry. I've also switched to the Spring generator in the meanwhile. If you're interested in these changes - feel free to pick them and create your own PR.

[robinjhector]

Is this still on-track for 7.0.1? Seeing some pretty horrendous performance hits with this bug, in large request bodies. The worksaround for now is to completely disable bean validation via configOptions

[Gerschtli]

Seems to be fixed by https://github.com/OpenAPITools/openapi-generator/pull/18302