public synchronized void release() throws CIFSException {
        final long usage = this.usageCount.decrementAndGet();
        if (usage == 0) {
            closeInternal(0L, false);
        } else if (log.isTraceEnabled()) {
            log.trace(String.format("Release %s (%d)", this, usage));
        }
    }

    /**
     * {@inheritDoc}
     *
     * @see java.lang.Object#finalize()
     */
    @Override

    }

    /**
     * @return tree connection with increased usage count
     */
    public SmbTreeConnection acquire() {
        final long usage = this.usageCount.incrementAndGet();
        if (log.isTraceEnabled()) {
            log.trace("Acquire tree connection " + usage + " " + this);
        }

        if (usage == 1) {
            synchronized (this) {
                try (SmbTreeImpl t = getTree()) {

     * @param track
     * @return tree with increased usage count
     */
    public SmbTreeImpl acquire(final boolean track) {
        final long usage = this.usageCount.incrementAndGet();
        if (log.isTraceEnabled()) {
            log.trace("Acquire tree " + usage + " " + this);
        }

        if (track && this.traceResource) {
            synchronized (this.acquires) {

            bufferIndex += 4;
            off = (off & 0xFFFF) - this.converter;
            off = start + off;
            e.remark = readString(buffer, off, 128, false);

            if (log.isTraceEnabled()) {
                log.trace(e.toString());
            }
        }
        setResults(results);

        return bufferIndex - start;
    }

    @Override
    public String toString() {

                    final long cnt = this.rspx.getCount();
                    this.fp += cnt;
                    len -= cnt;
                    off += cnt;
                } else {
                    if (log.isTraceEnabled()) {
                        log.trace(String.format("Wrote at %d remain %d off %d len %d", this.fp, len - w, off, w));
                    }
                    this.req.setParam(fh.getFid(), this.fp, len - w, b, off, w);

     */
    public void release() {
        final long usage = this.usageCount.decrementAndGet();
        if (log.isTraceEnabled()) {
            log.trace("Release transport " + usage + " " + this);
        }

        if (usage == 0) {
            if (log.isTraceEnabled()) {
                log.trace("Transport usage dropped to zero " + this);
            }
        } else if (usage < 0) {

            throw new IOException("Bad file descriptor");
        }
        // ensure file is open
        try (SmbFileHandleImpl fd = ensureOpen(); SmbTreeHandleImpl th = fd.getTree()) {

            if (log.isTraceEnabled()) {
                log.trace("read: fid=" + fd + ",off=" + off + ",len=" + len);
            }

            final int type = this.file.getType();
            int r, n;

    public static final String SMB_OWNER_ATTRIBUTES = "smb1OwnerAttributes";

    static {
        if (Config.getInt("jcifs.smb1.util.loglevel", -1) == -1) {
            if (logger.isTraceEnabled()) {
                LogStream.setLevel(4);
            } else if (logger.isDebugEnabled()) {
                LogStream.setLevel(3);
            } else if (logger.isWarnEnabled()) {

            lc.login();

            Subject s = lc.getSubject();
            if (log.isDebugEnabled()) {
                log.debug("Got subject: " + s.getPrincipals());
            }
            if (log.isTraceEnabled()) {
                log.trace("Got subject " + s);
            }

            this.cachedSubject = s;
            return this.cachedSubject;
        } catch (LoginException e) {

            // Read byte count for AndX message - this is correct per SMB1 specification
            final int n = readBytesWireFormat(buffer, bufferIndex);
            if (n != this.byteCount && log.isTraceEnabled()) {
                log.trace("Short read, have " + n + ", want " + this.byteCount);
            }
            bufferIndex += this.byteCount;
        }

        /*