return delegate.getSmbSession(tf, targetHost, targetDomain);
    }

    @Override
    public boolean isSMB2() throws SmbException {
        return delegate.isSMB2();
    }

    @Override
    public int getInflightRequests() {
        return delegate.getInflightRequests();
    }

    @Override
    public CIFSContext getContext() {

     */
    boolean isSameTree(SmbTreeHandle th);

    /**
     * Checks if this tree handle uses SMB2 or later protocol
     * @return whether this tree handle uses SMB2+
     */
    boolean isSMB2();

    /**
     * Gets the remote host name for this tree connection
     * @return the remote host name
     */
    String getRemoteHostName();

    /**

        setField(transport, "smb2", true);
        assertTrue(transport.isSMB2());

        // 2) smb2 false but negotiated is SMB2 response
        setField(transport, "smb2", false);
        Smb2NegotiateResponse smb2 = new Smb2NegotiateResponse(cfg);
        setField(transport, "negotiated", smb2);
        assertTrue(transport.isSMB2());

        // 3) SMB1 negotiation

            }

            final Configuration config = h.getConfig();
            SmbBasicFileInfo info;
            boolean haveSize = true, haveAttributes = true;
            long fileSize = 0;
            if (h.isSMB2()) {
                final Smb2CreateRequest req = new Smb2CreateRequest(config, uncPath);
                req.setDesiredAccess(access);
                setCreateDisposition(req, flags);

     * on the server.
     */
    @Override
    public int available() throws IOException {
        try (SmbFileHandleImpl fd = this.handle.ensureOpen(); SmbTreeHandleImpl th = fd.getTree()) {
            if (th.isSMB2()) {
                final Smb2IoctlRequest req = new Smb2IoctlRequest(th.getConfig(), Smb2IoctlRequest.FSCTL_PIPE_PEEK, fd.getFileId());
                req.setMaxOutputResponse(16);

            final SmbComReadAndXResponse response = new SmbComReadAndXResponse(th.getConfig(), b, off);
            do {
                r = len > this.readSize ? this.readSize : len;

                if (th.isSMB2()) {
                    final Smb2ReadRequest request = new Smb2ReadRequest(th.getConfig(), fh.getFileId(), b, off);
                    request.setOffset(this.fp);
                    request.setReadLength(r);

        this.sharing = sharing;
        this.access = access | SmbConstants.FILE_WRITE_DATA;

        try (SmbTreeHandleImpl th = file.ensureTreeConnected()) {
            this.smb2 = th.isSMB2();
            try (SmbFileHandleImpl fh = ensureOpen()) {
                if (append) {
                    this.fp = fh.getInitialSize();
                }
                init(th);

        }
        try (SmbTreeHandleImpl th = this.handle.getTree()) {

            CommonServerMessageBlockRequest req;
            NotifyResponse resp = null;
            if (th.isSMB2()) {
                final Smb2ChangeNotifyRequest r = new Smb2ChangeNotifyRequest(th.getConfig(), this.handle.getFileId());
                r.setCompletionFilter(this.filter);

    private SmbPipeOutputStream newStream() throws CIFSException {
        // Arrange common constructor collaborators to avoid touching network/state
        when(handle.getPipe()).thenReturn(pipe);
        when(tree.isSMB2()).thenReturn(true);
        when(tree.getSendBufferSize()).thenReturn(4096);
        // Act
        return new SmbPipeOutputStream(handle, tree);
    }

    @ParameterizedTest

        this.smb2 = true;
        this.dialect = dialectId;
    }

    /**
     * Check if this is an SMB2 dialect version
     *
     * @return the smb2
     */
    public final boolean isSMB2() {
        return this.smb2;
    }

    /**
     * Get the SMB2 dialect identifier
     *
     * @return the dialect
     */
    public final int getDialect() {
        if (!this.smb2) {