final DfsReferralDataImpl dr = new DfsReferralDataImpl();
        dr.server = n.getServer();
        dr.share = n.getShare();
        dr.expiration = n.getExpiration();
        dr.path = n.getPath();
        dr.pathConsumed = this.pathConsumed + n.getPathConsumed();
        if (this.path != null) {
            dr.pathConsumed -= this.path != null ? this.path.length() + 1 : 0;
        }

            DfsReferral dr = trans.getDfsReferrals(auth, "", 0);
            if (dr != null) {
                final DfsReferral start = dr;
                do {
                    final String domain = dr.server.toLowerCase();
                    entry.map.put(domain, new HashMap());
                    dr = dr.next;
                } while (dr != start);

                _domains = entry;

        DfsReferralData dr = start;
        IOException last = null;
        do {
            if (dr != null) {
                targetDomain = dr.getDomain();
                host = dr.getServer().toLowerCase(Locale.ROOT);
                share = dr.getShare();
            }

            try {

                if (this.nonPooled) {

            dr.expiration = expiration;
            if (path.equals("")) {
                dr.server = resp.referrals[di].path.substring(1).toLowerCase();
            } else {
                dfsPathSplit(resp.referrals[di].node, arr);
                dr.server = arr[1];
                dr.share = arr[2];
                dr.path = arr[3];
            }
            dr.pathConsumed = resp.pathConsumed;

        }
        if (!dr.getPath().isEmpty()) {
            dunc = "\\" + dr.getPath() + dunc;
        }

        if (dunc.charAt(0) != '\\') {
            log.warn("No slash at start of remaining DFS path " + dunc);
        }

        this.unc = dunc;
        if (dr.getShare() != null && !dr.getShare().isEmpty()) {
            this.share = dr.getShare();
        }

func (lm *LRWMutex) DRLocker() sync.Locker {
	return (*drlocker)(lm)
}

type drlocker LRWMutex

func (dr *drlocker) Lock()   { (*LRWMutex)(dr).RLock() }

        DfsReferralData dr = mock(DfsReferralData.class);
        when(dr.getServer()).thenReturn("dfs-server");
        when(dr.getShare()).thenReturn("dfs-share");
        when(dr.getPath()).thenReturn("dfs/path");
        when(dr.getPathConsumed()).thenReturn(2); // consume leading \\ from UNC

        String newUnc = l.handleDFSReferral(dr, "\\req\\");

    /**
     * Add a referral to the cache
     *
     * @param path the DFS path for this referral
     * @param dr the DFS referral data to cache
     * @param tc the CIFS context containing configuration
     */
    void cache(CIFSContext tc, String path, DfsReferralData dr);

    boolean overlaps(SmbResourceLocator other) throws CIFSException;

    /**
     * Internal: for testing only
     *
     * @param dr the DFS referral data to process
     * @param reqPath the requested path to resolve
     * @return resolved unc path
     */
    String handleDFSReferral(DfsReferralData dr, String reqPath);

     */
    DfsReferralDataInternal combine(DfsReferralData next);

    /**
     * Append another referral to this referral chain
     *
     * @param dr the referral to append
     */
    void append(DfsReferralDataInternal dr);