[BUG] JAX-RS does not honor sourceFolder for invoker package

[rehand]

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?
• What's the actual output vs expected output?
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Description

If the property sourceFolder is set the generated classes for the invoker package are not put into this folder, so the option is not honored.

openapi-generator version

7.6.0

OpenAPI declaration file content or url

openapi: 3.0.3
info:
    title: Test
    description: Test.
    version: 1.0.0
servers:
    - url: https://localhost:29090/api
paths:
    /test:
        post:
            summary: Test.
            requestBody:
                content:
                    application/json:
                        schema:
                            type: array
                            items:
                                $ref: '#/components/schemas/TestDto'
            responses:
                '201':
                    description: OK.
components:
    schemas:
        TestDto:
            type: object
            properties:
                testId:
                    type: string
                    description: Unique ID
                    format: uuid
                mapStringToString:
                    type: object
                    additionalProperties:
                        type: string
                    description: A key/value map string to string.
                mapStringToNumber:
                    type: object
                    additionalProperties:
                        type: number
                    description: A key/value map of string to number.

Generation Details

Use options invokerPackage and sourceFolder. Set sourceFolder to "..".

Steps to reproduce

Invoke the generator once with sourceFolder:

java -jar .\openapi-generator-cli.jar generate -i test.yaml -g jaxrs-spec -o ./gen_with_source --additional-properties=invokerPackage=org.openapitools.invoker,sourceFolder=..

Compare it to the result without sourceFolder:

java -jar .\openapi-generator-cli.jar generate -i test.yaml -g jaxrs-spec -o ./gen_without_source --additional-properties=invokerPackage=org.openapitools.invoker

When generating without source folder all files are placed in the output directory in src/gen/java/...

> tree .
└───gen_without_source
    ├───.openapi-generator
    └───src
        ├───gen
        │   └───java
        │       └───org
        │           └───openapitools
        │               ├───api
        │               ├───invoker
        │               └───model
        └───main
            └───openapi

When generating with source folder most files are placed in the specified directory except the invoker package (this one is still inside, it seems to use a different current directory):

> tree .
├───gen_with_source
│   ├───.openapi-generator
│   ├───org
│   │   └───openapitools
│   │       └───invoker
│   └───src
│       └───main
│           └───openapi
└───org
    └───openapitools
        ├───api
        └───model

Related issues/PRs

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