public boolean isValidTid () {
        return getTreeId() != -1;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.TreeConnectResponse#getService()
     */
    @Override
    public String getService () {
        return null;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.TreeConnectResponse#isShareDfs()
     */
    @Override

    }


    /**
     * @return the type of this tree
     */
    public int getTreeType () {
        String connectedService = getService();
        if ( "LPT1:".equals(connectedService) ) {
            return SmbConstants.TYPE_PRINTER;
        }
        else if ( "COMM".equals(connectedService) ) {
            return SmbConstants.TYPE_COMM;