req = r;
            } else {
                if (!th.hasCapability(SmbConstants.CAP_NT_SMBS)) {
                    throw new SmbUnsupportedOperationException("Not supported without CAP_NT_SMBS");
                }

                /*
                 * NtTrans Notify Change Request / Response
                 */

        when(handle.getTree()).thenReturn(tree);
        when(tree.isSMB2()).thenReturn(false);
        when(tree.getConfig()).thenReturn(mock(Configuration.class));
        when(tree.hasCapability(SmbConstants.CAP_NT_SMBS)).thenReturn(true);
        when(handle.getFid()).thenReturn(fid);
        when(tree.send(any(CommonServerMessageBlockRequest.class), any(), any(), any())).thenReturn(resp);
    }

        buffer.putInt(8192); // maxBufferSize
        buffer.putInt(65536); // maxRawSize
        buffer.putInt(123456789); // sessionKey
        buffer.putInt(SmbConstants.CAP_UNICODE | SmbConstants.CAP_NT_SMBS); // capabilities
        buffer.putLong(new Date().getTime()); // serverTime
        buffer.putShort((short) -480); // serverTimeZone
        buffer.put((byte) 8); // encryptionKeyLength

    int CAP_MPX_MODE = 0x0002;
    /** Unicode capability */
    int CAP_UNICODE = 0x0004;
    /** Large files capability */
    int CAP_LARGE_FILES = 0x0008;
    /** NT SMBs capability */
    int CAP_NT_SMBS = 0x0010;
    /** RPC remote APIs capability */
    int CAP_RPC_REMOTE_APIS = 0x0020;
    /** 32-bit status codes capability */
    int CAP_STATUS32 = 0x0040;
    /** Level II oplocks capability */

        when(tree.acquire()).thenReturn(tree);

        // Setup for ensureOpen
        when(tree.isSMB2()).thenReturn(false);
        when(tree.hasCapability(SmbConstants.CAP_NT_SMBS)).thenReturn(true);
        when(pipe.openUnshared(anyInt(), anyInt(), anyInt(), anyInt(), anyInt())).thenReturn(fh);
        when(fh.acquire()).thenReturn(fh);
        lenient().when(fh.isValid()).thenReturn(true);

        // Configure mock transport
        mockTransport.server = serverData;
        mockTransport.sessionKey = 0x12345678;
        mockTransport.capabilities = SmbConstants.CAP_UNICODE | SmbConstants.CAP_NT_SMBS;
        mockTransport.snd_buf_size = 16644;
        mockTransport.maxMpxCount = 50;

        // Configure mock session
        mockSession.transport = mockTransport;

    @DisplayName("Capability flags are correct")
    void capabilityFlagsTest() {
        // Test individual capability values
        assertEquals(0x0004, SmbConstants.CAP_UNICODE);
        assertEquals(0x0010, SmbConstants.CAP_NT_SMBS);
        assertEquals(0x0040, SmbConstants.CAP_STATUS32);
        assertEquals(0x1000, SmbConstants.CAP_DFS);
        assertEquals(0x80000000, SmbConstants.CAP_EXTENDED_SECURITY);
    }

    /**

                    req.setFileInformation(new FileBasicInfo(ctime, atime, mtime, 0L, attrs));
                    dh.send(req);
                } else if (dh.hasCapability(SmbConstants.CAP_NT_SMBS)) {
                    // use the open file descriptor
                    dh.send(new Trans2SetFileInformation(dh.getConfig(), dfd.getFid(), attrs, ctime, mtime, atime),

                    th.send(new TransWaitNamedPipe(th.getConfig(), this.uncPath), new TransWaitNamedPipeResponse(th.getConfig()));
                }

                if (th.hasCapability(SmbConstants.CAP_NT_SMBS) || this.uncPath.startsWith("\\pipe\\")) {
                    this.handle = this.pipe.openUnshared(this.openFlags, this.access, this.sharing, SmbConstants.ATTR_NORMAL, 0);
                } else {

        }

        try (SmbTreeHandleImpl th = ensureTreeConnected()) {
            if (!th.isSMB2() && !th.hasCapability(SmbConstants.CAP_NT_SMBS)) {
                throw new SmbUnsupportedOperationException("Not supported without CAP_NT_SMBS");
            }
            return new SmbWatchHandleImpl(openUnshared(O_RDONLY, READ_CONTROL | GENERIC_READ, DEFAULT_SHARING, 0, 1), filter, recursive);
        }