return null;
        }

        Properties result = null;

        if (value instanceof WebAuthenticationConfig[]) {
            for (final WebAuthenticationConfig config : (WebAuthenticationConfig[]) value) {
                if (config.getAuthSchemeType() == WebAuthenticationConfig.AuthSchemeType.NTLM) {
                    if (result == null) {
                        result = new Properties();

        if (value instanceof WebAuthenticationConfig[]) {
            return convertFromConfig((WebAuthenticationConfig[]) value);
        }

        logger.warn("Unknown authentication type: type={}", value.getClass().getName());
        return new Hc4Authentication[0];
    }

    /**
     * Converts WebAuthenticationConfig POJO array to Hc4Authentication array.
     *