break;
        case "errors.password_is_blacklisted":
            messages.addErrorsPasswordIsBlacklisted(GLOBAL);
            break;
        default:
            messages.addErrorsBlankPassword(GLOBAL);
            break;
        }
    }

    /**
     * Returns the index HTML response.
     *
     * @return the HTML response
     */
    protected HtmlResponse asIndexHtml() {

        if (form.crudMode == CrudMode.CREATE && StringUtil.isBlank(form.password)) {
            resetPassword(form);
            throwValidationError(messages -> {
                messages.addErrorsBlankPassword("password");
            }, validationErrorLambda);
        }
        if (form.password != null && !form.password.equals(form.confirmPassword)) {
            form.confirmPassword = null;

            break;
        case "errors.password_is_blacklisted":
            messages.addErrorsPasswordIsBlacklisted(GLOBAL);
            break;
        default:
            messages.addErrorsBlankPassword(GLOBAL);
            break;
        }
    }

    private OptionalThing<HttpSession> getSession() {
        final HttpSession session = request.getSession(false);
        if (session != null) {

     * <pre>
     * message: Password is required.
     * </pre>
     * @param property The property name for the message. (NotNull)
     * @return this. (NotNull)
     */
    public FessMessages addErrorsBlankPassword(String property) {
        assertPropertyNotNull(property);
        add(property, new UserMessage(ERRORS_blank_password));
        return this;
    }

    /**