}
        return this.sessionKey;
    }


    @Override
    public SmbTreeImpl getSmbTree ( String share, String service ) {
        if ( share == null ) {
            share = "IPC$";
        }

        synchronized ( this.trees ) {
            for ( SmbTreeImpl t : this.trees ) {
                if ( t.matches(share, service) ) {
                    return t.acquire();

        }

        try ( SmbSessionImpl sess = getSmbSession(ctx, targetHost, targetDomain);
              SmbTransportImpl transport = sess.getTransport();
              SmbTreeImpl ipc = sess.getSmbTree("IPC$", null) ) {

            DfsReferralRequestBuffer dfsReq = new DfsReferralRequestBuffer(path, 3);
            DfsReferralResponseBuffer dfsResp;
            if ( isSMB2() ) {