[BUG][JAVA][Jackson] Incorrect annotations

[jzrebiec]

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

Xml annotations have wrong values if $ref is used

openapi-generator version

4.3.0

OpenAPI declaration file content or url

openapi: 3.0.0
info:
  title: API
  version: 1.0.0

paths:
  /:
    post:
      requestBody:
        required: true
        content:
          application/xml:
            schema:
              $ref: '#/components/schemas/Request'
      responses:
        '200':
          description: OK

components:
  schemas:
    Request:
      type: object
      properties:
        simpleAttribute:
          type: string
          xml:
            attribute: true
            name: ATTR
        refAttribute:
          $ref: '#/components/schemas/RefAttribute'
        simpleNode:
          type: object
          properties:
            prop1:
              type: string
            prop2:
              type: string
          xml:
            name: NODE
        refNode:
          $ref: '#/components/schemas/RefNode'
        simpleArray:
          type: array
          items:
            type: string
            xml:
              name: ARR_ITEM
        simpleWrappedArray:
          type: array
          items:
            type: string
            xml:
              name: ARR_ITEM
          xml:
            wrapped: true
            name: WRAPPED_ARRAY
        nodeArray:
          type: array
          items:
            $ref: '#/components/schemas/RefNode'
        wrappedNodeArray:
          type: array
          items:
            $ref: '#/components/schemas/RefNode'
          xml:
            wrapped: true
            name: WRAPPED_NODE_ARRAY
      xml:
        name: Request

    RefAttribute:
      type: string
      enum: [A, B, C]
      xml:
        name: REF_ATTR
        attribute: true

    RefNode:
      type: object
      properties:
        prop1:
          type: string
        prop2:
          type: string
      xml:
        name: REF_NODE

Command line used for generation

generate -g java --library resttemplate -o C:\openapi-generator-tests -i C:\openapi-generator-tests\Schema.yaml --additional-properties=withXml=true,serializationLibrary=jackson,dateLibrary=java8-localdatetime --model-package=com.my.project

Steps to reproduce

Actual

https://gist.github.com/jzrebiec/1eb12e8511403e11d459d6ebd8cbfc5d

Expected

https://gist.github.com/jzrebiec/bda6719eae8222859d11f13197a757e2

Related issues/PRs

#3223 #2417 #5078 #5371

Suggest a fix

#5371

[Philzen]

This may have been already solved via #15115, can you confirm?