@RequestParam(value = "fieldValue", required = false) String fieldValue) {
ValidateResponse response = ValidateResponse.newInstance();
if (JCaptcha.hasCaptcha(request, fieldValue) == false) {
response.validateFail(fieldId, messageSource.getMessage("jcaptcha.validate.error", null, null));
} else {
response.validateSuccess(fieldId, messageSource.getMessage("jcaptcha.validate.success", null, null));
}
return response.result();