Ref with anyOf not working as it should

[davidgayoso]

In the above case, I have a component with two refs to another component which contains an anyOf specification. The next photo shows the component with the anyOf:

When the multiapi tries to generate all the needed files based on the OpenAPI specification, it returns a NullPointerException. However, if you substitute the first ref from the first image with the component itself like in the next image, it generates the corresponding elements but not properly:

I think that the problem resides in how it works with the anyOf specification.

Here you have a zip containing the files with the OpenAPI specification:
specification.zip

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[5uso-sng]

Looking into this I managed to reproduce the NullPointerException with this reduced specification:
api-test.yml

openapi: 3.0.2
info:
  title: Schema Management
  version: 2.0.0
servers:
- url: https://localhost/v1
paths:
  /schema:
    get:
      tags:
      - schema
      operationId: getSchema
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: "assets/components.yml#/components/schemas/schema"

assets/components.yml

components:
  schemas:
    schema:
      type: object
      properties:
        thing:
          $ref: "#/components/schemas/typeArray"
    typeArray:
      type: array
      items:
        oneOf:
        - $ref: "#/components/schemas/stringField"
    stringField:
      type: string

This crashes inside the MapperContentUtil class. If schema is instead defined as...

schema:
  $ref: "#/components/schemas/typeArray"

...the crash then happens inside the MapperPathUtil class.

Do note that separating the components into a different file is required for the issue to occur. This seems to be caused by the OpenAPI library returning an incomplete list of schemas when calling openAPI.getComponents().getSchemas() only when the files are separate.

[AdrianLagartera]

Resolved in the #160