return APP_TYPE;
    }

    @Override
    protected OptionalThing<String> myUserType() { // for framework
        return OptionalThing.of(USER_TYPE); // same reason as getUserBean()
    }

    // ===================================================================================
    //                                                                          Validation

                            if (auth.isDebugActive() && StringUtil.isNotBlank(auth.getLastErrorReason())) {
                                logger.warn("Authentication Failure: {} - Reason: {}", errors.stream().collect(Collectors.joining(", ")),
                                        auth.getLastErrorReason());
                            } else {

        // ## Arrange ##
        Locale.setDefault(Locale.JAPANESE);
        final SQLException sqlException = new SQLException("some reason", "fooState", 7650);
        final SQLException sqlException2 = new SQLException("hoge reason", "barState", 7660);
        final SQLException sqlException3 = new SQLException("fuga reason", "bazState", 7670);
        sqlException.setNextException(sqlException2);
        sqlException2.setNextException(sqlException3);