[JAVA] Error generating models using array of enums in parent definition

[fabriziofortino]

Description

When a parent definition contains an array of enums the generated models don't compile.

Swagger-codegen version

Latest version from master.

Swagger declaration file content or url

    swagger: '2.0'
    info:
      description: 'My Service'
      version: 1.0.0
      title: My Service
    schemes:
      - http
    paths:
      /templates:
        get:
          summary: Returns all
          description: ''
          operationId: getAll
          produces:
            - application/json
          responses:
            '200':
              description: successful operation
              schema:
                type: array
                items:
                  $ref: '#/definitions/Parent'
    definitions:
      Parent:
        discriminator: id
        properties:
          id:
            type: string
          status:
            type: array
            items:
              type: string
              enum:
                - active
                - inactive
                - pending
        required:
          - id
      Child:
        allOf:
          - $ref: "#/definitions/Parent"
          - type: object
            properties:
              subProperty:
                type: string

Command line used for generation

java -Dmodels -Dapis -DsupportingFiles=pom.xml,README.md,build.gradle,settings.gradle,gradle.properties,AndroidManifest.xml -jar /home/third-parties/swagger-codegen/modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate -l java -o java 

Steps to reproduce

Generate the model.
Compile with gradle compileJava.

Here is the compilation error I get.

Child.java:65: error: name clash: status(List<Child.StatusEnum>) in Child and status(List<Parent.StatusEnum>) in Parent have the same erasure, yet neither overrides the other
  public Child status(List<StatusEnum> status) {
               ^
Child.java:72: error: getStatus() in Child cannot override getStatus() in Parent
  public List<StatusEnum> getStatus() {
                          ^
  return type List<Child.StatusEnum> is not compatible with List<Parent.StatusEnum>
Child.java:75: error: name clash: setStatus(List<Child.StatusEnum>) in Child and setStatus(List<Parent.StatusEnum>) in Parent have the same erasure, yet neither overrides the other
  public void setStatus(List<StatusEnum> status) {
              ^
3 errors
:compileJava FAILED

Suggest a Fix

IMHO subclasses should not redefine inherited properties, getters and setters.

[wing328]

@cbornet PR (#3393) has been merged into master. Please pull the latest to give it a try.