swagger-codegen-cli omits integer default values

Description

I am using swagger-codegen-cli.jar to generate JSON with "-l swagger" from my input YAML. This tool does not include default values specified for integer properties in object types

Swagger-codegen version

2.2.3

Swagger declaration file content or url

Input YAML file:

swagger: '2.0'
info:
  title: Settings API
  contact:
    name: Somebody
    url: https://settings.com
    email: settings@settings.com
  description: Allows the user to get some settings
  version: v1
host: api.settings.com
schemes:
- https
- http
basePath: /api/v1/stuff
produces:
- application/json

paths:
  /settings:
    get:
      summary: Get the settings
      responses:
        200:
          description: The settings
          schema:
            $ref: '#/definitions/Settings'



definitions:
  Settings:
    summary: The settings object
    type: object
    properties:
      StringProperty:
        type: string
        summary: A string property
        default: "Stringy"
      BooleanProperty:
        type: boolean
        summary:  A boolean property
        default: true
      IntProperty:
        type: integer
        summary: An integer property
        default: 12345

Command line:

java -jar swagger-codegen-cli.jar generate -i input.yaml -l swagger -o .

Output JSON:

{
  "swagger" : "2.0",
  "info" : {
    "description" : "Allows the user to get some settings",
    "version" : "v1",
    "title" : "Settings API",
    "contact" : {
      "name" : "Somebody",
      "url" : "https://settings.com",
      "email" : "settings@settings.com"
    }
  },
  "host" : "api.settings.com",
  "basePath" : "/api/v1/stuff",
  "schemes" : [ "https", "http" ],
  "produces" : [ "application/json" ],
  "paths" : {
    "/settings" : {
      "get" : {
        "summary" : "Get the settings",
        "parameters" : [ ],
        "responses" : {
          "200" : {
            "description" : "The settings",
            "schema" : {
              "$ref" : "#/definitions/Settings"
            }
          }
        }
      }
    }
  },
  "definitions" : {
    "Settings" : {
      "type" : "object",
      "properties" : {
        "StringProperty" : {
          "type" : "string",
          "default" : "Stringy"
        },
        "BooleanProperty" : {
          "type" : "boolean",
          "default" : true
        },
        "IntProperty" : {
          "type" : "integer"
        }
      }
    }
  }
}

Note that the default values for the string and boolean properties are included, but the default value for the integer property (12345) is missing.

##### Command line used for generation

java -jar swagger-codegen-cli.jar generate -i input.yaml -l swagger -o .

##### Steps to reproduce

Type the above command

##### Related issues/PRs



##### Suggest a fix/enhancement

Reproduce the issue with swagger-codegen-cli.jar, the supplied YAML, and the generate -i input.yaml -l swagger -o . command. Trace the Swagger output generation for schema property defaults, then verify that the integer default 12345 is preserved alongside the existing string and boolean defaults.