/**
     * Outputs a log entry.
     *
     * @param messageCode
     *            Message code. Must not be {@literal null} or empty string.
     * @param args
     *            Arguments
     */
    public void log(final String messageCode, final Object... args) {
        assertArgumentNotEmpty("messageCode", messageCode);

        log(format(messageCode, args));
    }

    /**
     * Outputs a log entry.