*/

    public synchronized static void setDefault( NtlmAuthenticator a ) {
        if( auth != null ) {
            return;
        }
        auth = a;
    }

    protected final String getRequestingURL() {
        return url;
    }
    protected final SmbAuthException getRequestingException() {
        return sae;
    }

/**

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_log.click_log";
    }

    @Override
    public String asEsIndexType() {
        return "click_log";
    }

    @Override
    public String asEsSearchType() {
        return "click_log";
    }

    @Override

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_user.group";
    }

    @Override
    public String asEsIndexType() {
        return "group";
    }

    @Override
    public String asEsSearchType() {
        return "group";
    }

    @Override
    public GroupDbm asDBMeta() {

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.access_token";
    }

    @Override
    public String asEsIndexType() {
        return "access_token";
    }

    @Override
    public String asEsSearchType() {
        return "access_token";
    }

    @Override

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.duplicate_host";
    }

    @Override
    public String asEsIndexType() {
        return "duplicate_host";
    }

    @Override
    public String asEsSearchType() {
        return "duplicate_host";
    }

    @Override

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.elevate_word";
    }

    @Override
    public String asEsIndexType() {
        return "elevate_word";
    }

    @Override
    public String asEsSearchType() {
        return "elevate_word";
    }

    @Override

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.key_match";
    }

    @Override
    public String asEsIndexType() {
        return "key_match";
    }

    @Override
    public String asEsSearchType() {
        return "key_match";
    }

    @Override

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.request_header";
    }

    @Override
    public String asEsIndexType() {
        return "request_header";
    }

    @Override
    public String asEsSearchType() {
        return "request_header";
    }

    @Override

    private static final int BYTE_ARRAY_BASE_OFFSET;

    /**
     * Returns an Unsafe. Suitable for use in a 3rd party package. Replace with a simple call to
     * Unsafe.getUnsafe when integrating into a JDK.
     *
     * @return an Unsafe instance if successful
     */
    private static Unsafe getUnsafe() {
      try {
        return Unsafe.getUnsafe();
      } catch (SecurityException tryReflectionInstead) {

	}
	if info.Free > info.Total {
		return info, fmt.Errorf("detected free space (%d) > total drive space (%d), fs corruption at (%s). please run 'fsck'", info.Free, info.Total, path)
	}
	info.Used = info.Total - info.Free
	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor
func GetDriveStats(major, minor uint32) (iostats IOStats, err error) {
	return IOStats{}, errors.New("operation unsupported")