// Verify interactions
        verify(tree, times(1)).send(isA(Trans2FindFirst2.class), any(Trans2FindFirst2Response.class));
        // Verify that Trans2FindNext2 was sent twice for fetching more entries
        verify(tree, times(2)).send(isA(Trans2FindNext2.class), any(Trans2FindFirst2Response.class));

        // Close should have sent FindClose2 exactly once

        byte[] data = "Appended".getBytes();

        // When
        outputStream.write(data);

        // Then - verify write request was sent
        verify(mockTreeHandle, atLeastOnce()).send(any(Smb2WriteRequest.class), any());
    }

    @Test
    void testMultipleWrites() throws IOException, CIFSException {
        // Given

    }

    /**
     * Get the preferred size for send operations
     *
     * @return preferred send size in bytes
     */
    public int getPreferredSendSize() {
        return preferredSendSize;
    }

    /**
     * Set the preferred size for send operations
     *
     * @param preferredSendSize preferred send size in bytes
     */

        assertFalse(it.hasNext(), "Iterator should be exhausted");

        // Close explicitly to exercise doCloseInternal
        it.close();

        // Verify interactions: one create, two additional directory queries (for fetchMore), one close
        verify(tree, times(1)).send(argThat((Request<?> r) -> r instanceof Smb2CreateRequest));

        rdmaWrites.incrementAndGet();
        bytesTransferred.addAndGet(bytes);
        totalWriteTime.addAndGet(durationNanos);
    }

    /**
     * Record an RDMA send operation
     *
     * @param bytes number of bytes sent
     * @param durationNanos operation duration in nanoseconds
     */
    public void recordRdmaSend(int bytes, long durationNanos) {
        rdmaSends.incrementAndGet();

        // Note: This IOCTL must be sent on an existing session
        // The actual sending would need integration with the session's transport
        // For now, we're preparing the request structure correctly

        // TODO: Integration point - send request through session.send()
        // Smb2IoctlResponse response = (Smb2IoctlResponse) session.send(request);
        // if (response.isSuccess()) {

    }

    /**
     * Get the preferred size for send operations
     *
     * @return preferred send size in bytes
     */
    public int getPreferredSendSize() {
        return preferredSendSize;
    }

    /**
     * Set the preferred size for send operations
     *
     * @param preferredSendSize preferred send size in bytes
     */

        }

        do {
            try {
                send(request, response, config.getNetbiosRetryTimeout());
            } catch (final InterruptedIOException ioe) {
                // second query thread to finish gets interrupted so this is expected
                if (log.isTraceEnabled()) {
                    log.trace("Failed to send nameservice request for " + name.name, ioe);
                }

        } else {
            final Trans2FindFirst2 req = new Trans2FindFirst2("\\", "*", SmbFile.ATTR_DIRECTORY);
            final Trans2FindFirst2Response resp = new Trans2FindFirst2Response();
            tree.send(req, resp);
        }
    }

    /* 0 - not connected
     * 1 - connecting
     * 2 - connected
     * 3 - disconnecting
     */
    int connectionState;
    int uid;
    Vector trees;

            if (LogStream.level > 2) {
                ex.printStackTrace(log);
            }
        } finally {
            tryClose();
        }
    }

    void send(final NameServicePacket request, final NameServicePacket response, int timeout) throws IOException {
        Integer nid = null;
        int max = NbtAddress.NBNS.length;

        if (max == 0) {