}
        if (StringUtil.isNotBlank(getAuthRealm())) {
            config.setRealm(getAuthRealm());
        }

        // AuthSchemeType の設定
        final String scheme = getProtocolScheme();
        if (Constants.BASIC.equals(scheme)) {
            config.setAuthSchemeType(AuthSchemeType.BASIC);
        } else if (Constants.DIGEST.equals(scheme)) {
            config.setAuthSchemeType(AuthSchemeType.DIGEST);