[Spring] doesn't generate default value for type array

Description

Having a query parameter of type array and defaultValue, doesn't set the defaultValue field for the generated @RequestParam and @ApiParam annotations

Swagger-codegen version

master

Swagger declaration file content or url

swagger: '2.0'
info:
  version: "1.0.0"
  title: Title was not specified
host: 'localhost:9090'
basePath: /base
schemes:
  - http
paths:
  /base/foo:
    get:
      responses:
        '200':
          description: Success
      operationId: getFoo
      parameters:
        - in: query
          name: params
          required: false
          type: array
          items:
            type: string
          collectionFormat: csv
          default:
            - 0759
            - 0722
            - 6543
  /base/bar:
    get:
      responses:
        '200':
          description: Success
      operationId: getBar
      parameters:
        - in: query
          name: params
          required: false
          type: string
          default: "0759, 0722, 6543"

Command line used for generation

$ java -Dapis -jar swagger-codegen-cli.jar generate -i test.yml -l spring --additional-properties interfaceOnly=true -o swagger-output/

Steps to reproduce

• Generate stubs
• Open swagger-output/src/main/java/io/swagger/api/BaseApi.java
• See differences between the two generated methods

Generated stub

@javax.annotation.Generated(value = "class io.swagger.codegen.languages.SpringCodegen", date = "2016-07-18T13:13:54.400-03:00")

@Api(value = "base", description = "the base API")
public interface BaseApi {

    @ApiOperation(value = "", notes = "", response = Void.class, tags={  })
    @ApiResponses(value = {
        @ApiResponse(code = 200, message = "Success", response = Void.class) })
    @RequestMapping(value = "/base/bar",
        method = RequestMethod.GET)
    ResponseEntity<Void> getBar(@ApiParam(value = "", defaultValue = "0759, 0722, 6543") @RequestParam(value = "params", required = false, defaultValue="0759, 0722, 6543") String params);


    @ApiOperation(value = "", notes = "", response = Void.class, tags={  })
    @ApiResponses(value = {
        @ApiResponse(code = 200, message = "Success", response = Void.class) })
    @RequestMapping(value = "/base/foo",
        method = RequestMethod.GET)
    ResponseEntity<Void> getFoo(@ApiParam(value = "") @RequestParam(value = "params", required = false) List<String> params);

}

Start with the test.yml declaration and regenerate the Spring output using the command shown, then inspect swagger-output/src/main/java/io/swagger/api/BaseApi.java. Compare the array-valued getFoo annotations with the scalar getBar annotations and trace the Spring generator path that produces them. Done means the array parameter's default value appears in both generated annotations without changing the scalar case.