XML example generation fails if an array has an example

[hkosova]

Q&A (please complete the following information)

• OS: Windows 10
• Browser: Chrome, Firefox (latest)
• Method of installation: https://editor.swagger.io
• Swagger-UI version: 3.36.2
• Swagger/OpenAPI version: 2.0, 3.0

Content & configuration

Example Swagger/OpenAPI definition:

openapi: 3.0.1
info:
  title: XML array schema with array-level example
  version: 1.0.0

paths:
  /users:
    get:
      responses:
        "200":
          description: ''
          content:
            application/xml:
              schema:
                $ref: '#/components/schemas/Users'

components:
  schemas:
    Users:
      type: array
      example:
        - id: 123
          name: bob
        - id: 456
          name: jane
      xml:
        name: Users
        wrapped: true
      items:
        type: object
        xml:
          name: User
        properties:
          id:
            type: integer
            xml:
              attribute: true
          name:
            type: string
            xml:
              attribute: true

Describe the bug you're encountering

If an array schema has an array-level example, XML example generation fails. This is a regression in 3.36.2, probably introduced in PR #6555. The same definition is displayed correctly in 3.36.1.

Actual behavior

Response example cannot be generated

😱 Could not render r, see the console

Expected behavior

Response example appears as:

<?xml version="1.0" encoding="UTF-8"?>
<Users>
	<User id="123" name="bob">
	</User>
	<User id="456" name="jane">
	</User>
</Users>

Screenshots