Swagger generator doesn't recognize controller

Description

Swagger generator doesn't recognize controller
http://stackoverflow.com/questions/38295951/swagger-generator-doesnt-recognize-controller

Swagger-codegen version

2.2.1

Swagger declaration file content or url

swagger: '2.0'
info:
  version: 0.0.0
  title: Mac Data API
paths:
  /tasks:
    x-swagger-router-controller: taskController
    get:
      operationId: getTasks
      responses:
        201:
          description: OK
          schema:
            type: "array"
            items:
              $ref: "#/definitions/task"
definitions:
  task:
    type: "object"
    properties:
      title:
        type: string
      date:
        type: string
      status:
        type: string
        default: "todo"
        enum:
        - todo
        - done
    required:
    - title
    - status

Command line used for generation

java -jar "E:\tools\\swagger-codegen-cli-2.2.1.jar" generate -l nodejs-server -o src/api/swagger -i src/api/swagger/swagger.yaml

Steps to reproduce

Just use swagger definition file and command line described above.

I'm confused with solution given in Stackoverflow thread... adding tags to make it works is crappy...

Furthermore, if I add multiple tags to get operation:

  ...
  /tasks:
    get:
      operationId: getTasks
      tags:
      - taskController
      - anotherController
      responses:
      ...

generate command spread the same code over templated controller files:

Reproduce the issue with the provided swagger.yaml and the Java command using the nodejs-server generator. Compare generation with x-swagger-router-controller alone versus multiple operation tags. Done means the controller is recognized as intended and an operation is not duplicated across templated controller files.