[JAVA][jaxrs-spec] @DefaultValue missing in API for query parameters

Description

Swagger-codegen version

<= 2.2.3-SNAPSHOT (latest available here on master)

Swagger declaration file content or url

paths:
  /health:
    post:
      operationId: postHealth
      tags:
        - Health
      parameters:
        - name: phoey
          in: query
          type: string
          default: foobar

Command line used for generation

generate -l jaxrs-spec -i myapi.yaml -o jaxrs-spec-stub

Steps to reproduce

It always happens because the template swagger-codegen/modules/swagger-codegen/src/main/resources/JavaJaxRS/spec/queryParams.mustache doesn't output @DefaultValue("{{{defaultValue}}}")

I would normally expect to see:

    @POST
    @Produces({ "application/json" })
    @ApiOperation(value = "", notes = "", response = void.class, tags={ "Health" })
    @ApiResponses(value = { 
        @ApiResponse(code = 201, message = "Null response", response = void.class),
        @ApiResponse(code = 200, message = "unexpected error", response = void.class) })
    public Response postHealth(@QueryParam("phoey")  @DefaultValue("foobar") String phoey) {
    	return Response.ok().entity("magic!").build();
    }

Related issues

Not really, this one is simpler than the other "defaultValue" issues reported here.

Suggest a Fix

Change swagger-codegen/modules/swagger-codegen/src/main/resources/JavaJaxRS/spec/queryParams.mustache from

{{#isQueryParam}}@QueryParam("{{baseName}}"){{#useBeanValidation}}{{>beanValidationQueryParams}}{{/useBeanValidation}} {{{dataType}}} {{paramName}}{{/isQueryParam}}

to

{{#isQueryParam}}@QueryParam("{{baseName}}"){{#useBeanValidation}}{{>beanValidationQueryParams}}{{/useBeanValidation}} {{#defaultValue}}@DefaultValue("{{{defaultValue}}}"){{/defaultValue}} {{{dataType}}} {{paramName}}{{/isQueryParam}}

Read swagger-codegen/modules/swagger-codegen/src/main/resources/JavaJaxRS/spec/queryParams.mustache and compare it with the supplied Swagger declaration. Run the jaxrs-spec generation command, then verify that the generated postHealth signature includes the default query-parameter annotation and value.