[Java][jaxrs 2.1/resteasy] compilation error because of @PATCH

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?
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Description

By default, @PATCH annotation is resolved to package io.swagger.jaxrs.* .
PATCH annotation was not part of jaxrs 2.0 specifications ( https://jax-rs.github.io/apidocs/2.1/ ) but it is now part of jaxrs 2.1 specifications (https://jax-rs.github.io/apidocs/2.1/).

Compilation with jaxrs 2.1 leads to a compilation failure because of imports with wild cards for both packages io.swagger.jaxrs.* and javax.ws.rs.* .

openapi-generator version

3.3.3

OpenAPI declaration file content or url

Command line used for generation

Steps to reproduce

The issue occurs when we upgrade our thorntail dependency from 2.2.0 (2.2.0) to 2.3.0 (jarxrs 2.1).

Related issues/PRs

Suggest a fix

The suggested fix is to replace @PATCH in the generated source code by @io.swagger.jaxrs.PATCH.
By the way, the generated source will compile for any jaxrs version.

As a work around, we use the com.google.code.maven-replacer-plugin:replacer maven plugin in order to update the generated source code on the fly. Of course we have to apply it everywhere @PATCH is generated.

Start by locating the Java JAX-RS generator templates or import-generation entry points that emit @PATCH, then reproduce generation with JAX-RS 2.1 as described. Done means the generated source uses an unambiguous PATCH annotation and compiles without conflicting wildcard imports.