spec = "//" + spec;
            limit += 2;
        }
        super.parseURL(u, spec, start, limit);
        path = u.getPath();
        ref = u.getRef();
        if (ref != null) {
            path += '#' + ref;
        }
        port = u.getPort();
        if (port == -1) {
            port = getDefaultPort();
        }

                : loc.getUNCPath();
        String share = loc.getShare();

        final DfsReferralData start = referral != null ? referral : this.ctx.getDfs().resolve(this.ctx, hostName, loc.getShare(), path);
        DfsReferralData dr = start;
        IOException last = null;
        do {
            if (dr != null) {
                targetDomain = dr.getDomain();

            throw new SmbException("The requested list operations is invalid: " + u.toString());
        }

        final Set<FileEntry> set = new HashSet<>();

        if (tc.getDfs().isTrustedDomain(tc, locator.getServer())) {
            /*
             * The server name is actually the name of a trusted
             * domain. Add DFS roots to the list.
             */
            try {

        // Mock credentials to avoid NullPointerException
        when(ctx.getCredentials()).thenReturn(credentials);
        when(credentials.getUserDomain()).thenReturn("DOMAIN");
        // Mock DFS resolver
        when(ctx.getDfs()).thenReturn(dfsResolver);
    }

    // Helper to set private field 'tree'
    private static void setTree(SmbTreeConnection c, SmbTreeImpl tree) {
        try {

            ((DfsReferralDataImpl) dr).fixupDomain(req.getDomain());
        }
        if (log.isDebugEnabled()) {
            log.debug("Got referral " + dr);
        }

        getContext().getDfs().cache(getContext(), path, dr);
        throw new DfsReferral(dr);
    }

    <T extends CommonServerMessageBlockResponse> T send(final CommonServerMessageBlockRequest request, final T response)