Openapi-generator: [DefaultCodegen] Warning when inline type is Object

[etherealjoy]

Description

There is a warning when an inline type is a map

[main] WARN  o.o.codegen.DefaultCodegen - Unknown type found in the schema: object
[main] WARN  o.o.codegen.DefaultCodegen - Unknown type found in the schema: object
[main] WARN  o.o.codegen.DefaultCodegen - Unknown type found in the schema: object
[main] WARN  o.o.codegen.DefaultCodegen - Unknown type found in the schema: object
[main] WARN  o.o.codegen.DefaultCodegen - Unknown type found in the schema: object
[main] WARN  o.o.codegen.DefaultCodegen - Unknown type found in the schema: object

is this really a valid warning or simply something in code is not handled.

openapi-generator version

master

OpenAPI declaration file content or url

  /default/test: 
    get:
      tags:
      - ApplicationEndpointTest      
      description: " Test"
      operationId: testApi
      consumes:
      - application/json
      produces:
      - application/json
      parameters:
      - name: "body"
        in: "body"
        description: "Requests to post"
        required: true
        schema: 
          type: "object"
          additionalProperties:
            type: "string"     
      responses:
        200:
          description: "Successful response"
          schema: 
            type: "object"
        404:
          description: "The request was not successfully executed."

Command line used for generation

java -jar ~/openapi-generator/modules/openapi-generator-cli/target/openapi-generator-cli.jar \
generate -i ./api.yaml -o ./gengo-server -g go-server 

[bodograumann]

I’m starting out with openapi-codegen and this message is confusing me. Imho object is a perfectly reasonable type wrt JSON schema. It can also be found here http://openapi-map.apihandyman.io/?version=2.0.

[wheezil]

This also shows up if you define a "free form" field:

"free_form_object_field": { 
    "type":"object"
}

This is also perfectly valid and should produce a field of type jackson ObjectNode or something similar.
Is there an actual error case that needs to be handled here or is the message completely spurious?

[etherealjoy]

Issue solved in v4.0.x