http response

httpresponse_incallback.java

    @RequestMapping("/returnEmployeeCallback2")
    public void returnEmployeeWithCallback2(Callback<HttpTextResponse> employeeCallback) {

        HttpTextResponse response = (HttpTextResponse) HttpResponseBuilder.httpResponseBuilder()
                .setBody("" + new Employee(1, "Rick"))
                .setContentType("crap/crap").setCode(777).build();

        employeeCallback.returnThis(response);

    }