}

    @Override
    public void fatalError(String message, Throwable throwable) {
        setMdc();
        logger.error(message, throwable);
    }

    @Override
    public boolean isFatalErrorEnabled() {
        return logger.isErrorEnabled();
    }

    /**
     * <b>Warning</b>: ignored (always return <code>0 == Logger.LEVEL_DEBUG</code>).
     */
    @Override
    public int getThreshold() {