/**
     * Send a request over the transport
     *
     * @param request the request to send
     * @throws IOException if an I/O error occurs
     */
    protected abstract void doSend(Request request) throws IOException;

    /**
     * Receive a response from the transport
     *
     * @param response the response object to populate
     * @throws IOException if an I/O error occurs
     */

     * @param response
     * @param params
     * @throws IOException
     * @throws SmbException
     * @throws TransportException
     * @throws EOFException
     */
    private <T extends CommonServerMessageBlock & Response> T sendComTransaction(final CommonServerMessageBlockRequest request,
            final T response, final Set<RequestParam> params) throws IOException, SmbException, TransportException, EOFException {

                try {
                    customCb.executeWithCircuitBreaker(() -> {
                        throw new RuntimeException("non-critical error");
                    }, isFailure);
                    fail("Should have thrown exception");
                } catch (CIFSException e) {
                    // Expected - exception is thrown but not counted as failure
                }
            }

                // If we had a non-critical destroy failure, throw it now
                if (failedToDestroy && destroyException != null) {
                    throw new DestroyFailedException("Partial destroy: " + destroyException.getMessage());
                }

            } catch (DestroyFailedException e) {
                // Re-throw DestroyFailedException as-is
                throw e;
            } catch (Exception e) {

    @Override
    @Deprecated
    public void connectLogon(final CIFSContext tf) throws SmbException {
        if (tf.getConfig().getLogonShare() == null) {
            try {
                treeConnect(null, null);
            } catch (final SmbException e) {
                throw e;
            } catch (final CIFSException e) {
                throw SmbException.wrap(e);
            }
        } else {

            }
        }
        throw new UnknownHostException(addr.getHostName());
    }

    @Override
    public NbtAddress getNbtByName(final String host) throws UnknownHostException {
        return getNbtByName(host, 0x00, null);
    }

    @Override
    public NbtAddress getNbtByName(final String host, final int type, final String scope) throws UnknownHostException {

            nameServiceClient.getByName(null);
        }, "Should throw UnknownHostException for null hostname");
    }

    @Test
    @DisplayName("Should handle empty hostname in getByName")
    void testGetByNameWithEmpty() {
        // When/Then
        assertThrows(UnknownHostException.class, () -> {
            nameServiceClient.getByName("");
        }, "Should throw UnknownHostException for empty hostname");
    }

            throw new SMBProtocolDecodingException("Invalid negotiate context count: " + negotiateContextCount + " (must be 0-100)");
        }

        bufferIndex += 4;

        // Validate sufficient buffer space for server GUID and capabilities
        if (buffer.length < bufferIndex + 16 + 4 + 4 + 4 + 4) {

            throw new IllegalArgumentException("Offsets and length must be non-negative");
        }
        if (srcOffset + length > src.length) {
            throw new IllegalArgumentException(
                    "Source array bounds exceeded: offset=" + srcOffset + ", length=" + length + ", array.length=" + src.length);
        }
        if (dstOffset + length > dst.length) {
            throw new IllegalArgumentException(

     * @param maxSize maximum allowed size
     * @throws SmbException if validation fails
     */
    public void validateBuffer(byte[] buffer, int expectedSize, int maxSize) throws SmbException {
        totalValidations.incrementAndGet();

        if (buffer == null) {
            failedValidations.incrementAndGet();
            throw new SmbException("Response buffer is null");
        }