[java-client][google-api-client] authentication support?

Created by: jmini

It seems to me that the google-api-client does not support authentication yet.

Tested with:

openapi: 3.0.1
info:
  title: ping test
  version: '1.0'
servers:
  - url: 'http://localhost:8082/'
  /ping/basicSecurity:
    post:
      operationId: pingBasicSec
      responses:
        '200':
          description: OK
      security:
        - httpBasic: []
  /ping/bearerSecurity:
    post:
      operationId: pingBearerSec
      responses:
        '200':
          description: OK
      security:
        - bearerAuth: []
components:
  securitySchemes:
    httpBasic:
      scheme: basic
      type: http
    bearerAuth:
      scheme: bearer
      bearerFormat: token
      type: http

I have opened this for tracking. If anyone is interested by the feature, please comment bellow.