}


    private static void interruptThreadSafely ( QueryThread thread ) {
        try {
            thread.interrupt();
        }
        catch ( SecurityException e ) {
            e.printStackTrace();
        }
    }


    private static void joinThread ( Thread thread ) {
        try {
            thread.join();
        }
        catch ( InterruptedException e ) {

            log.trace("Acquire tree " + usage + " " + this);
        }

        if ( track && this.traceResource ) {
            synchronized ( this.acquires ) {
                this.acquires.add(truncateTrace(Thread.currentThread().getStackTrace()));
            }
        }

        if ( usage == 1 ) {
            synchronized ( this ) {
                if ( this.sessionAcquired.compareAndSet(false, true) ) {

        /*
         * Note the Transport thread isn't running yet so we can
         * read from the socket here.
         */
        try {
            this.socket.setSoTimeout(this.transportContext.getConfig().getConnTimeout());
            if ( peekKey() == null ) /* try to read header */
                throw new IOException("transport closed in negotiate");
        }

        try ( SmbFile f = getDefaultShareRoot() ) {
            checkConnection(f);
            while ( true ) {
                f.list();
                Thread.sleep(5000);
            }

        }
    }

            Smb2QueryInfoResponse resp = withOpen(
                th,
                Smb2CreateRequest.FILE_OPEN,
                SmbConstants.FILE_READ_ATTRIBUTES | SmbConstants.READ_CONTROL,
                SmbConstants.FILE_SHARE_READ | SmbConstants.FILE_SHARE_WRITE,
                req);
            return resp.getInfo(SecurityDescriptor.class);
        }

 * exists and is not marked read-only. By default, resources are
 * considered to be read-only and therefore for <code>smb1://</code>,
 * <code>smb1://workgroup/</code>, and <code>smb1://server/</code> resources
 * will be read-only.
 *
 * @return  <code>true</code> if the resource exists is not marked
 *          read-only
 */

    public boolean canWrite() throws SmbException {