assertEquals((byte) 'S', SMBUtil.SMB_HEADER[1]);
        assertEquals((byte) 'M', SMBUtil.SMB_HEADER[2]);
        assertEquals((byte) 'B', SMBUtil.SMB_HEADER[3]);

        // Verify remaining bytes are zeros
        for (int i = 4; i < 24; i++) {
            assertEquals((byte) 0x00, SMBUtil.SMB_HEADER[i]);
        }
    }

    @Test
    void testSMB2Header() {

                    }
                });
    }

    /**
     * Cleanup method called when the helper is being destroyed.
     * Logs cache statistics and processes any remaining statistics
     * objects in the cache before shutdown.
     */
    @PreDestroy
    public void destroy() {
        if (logger.isDebugEnabled()) {
            logger.debug("cache stats: {}", statsCache.stats());

        when(dr.getPathConsumed()).thenReturn(2); // consume leading \\ from UNC

        String newUnc = l.handleDFSReferral(dr, "\\req\\");
        // dunc is "\\" + path + remaining  - note: path may not have leading backslashes
        assertTrue(newUnc.contains("dfs/path") || newUnc.contains("dfs\\path"));
        assertEquals(dr, l.getDfsReferral());

            final ByteBuffer buffer = ByteBuffer.wrap(nonce);
            buffer.order(java.nio.ByteOrder.LITTLE_ENDIAN);
            buffer.putLong(counter);
            // Remaining bytes (if any) stay zero-padded
        }

        return nonce;
    }

    /**
     * Generate a secure random nonce for initial session setup.

            byte[] testData = "Test RDMA data transfer".getBytes();
            sendBuffer.getBuffer().put(testData);
            sendBuffer.getBuffer().flip();
            assertEquals(testData.length, sendBuffer.getBuffer().remaining(), "Buffer should contain test data");

            // Clean up
            bufferManager.releaseSendRegion(sendBuffer);
            bufferManager.releaseReceiveRegion(recvBuffer);

            decodeIpChangeMessage(buf, message);
            break;
        default:
            // Skip unknown message types
            buf.advance(messageLength - 8); // Skip remaining data (minus type and length)
            break;
        }

        return message;
    }

    /**
     * Decodes a resource change notification message.
     */

            // The final response in the compounded response chain will have NextCommand equal to 0,
            // and it MUST be processed as an individual message of a size equal to the number of bytes
            // remaining in this receive.
            final int rem = this.readSize - this.length;
            len += rem;
        }

        haveResponse(buffer, start, len);

            testMessage.setBytesRead(10);
            testMessage.setReadSize(200); // Total read size

            int len = testMessage.decode(buffer, 0, true);

            // Should include remaining bytes for final response
            assertTrue(len > Smb2Constants.SMB2_HEADER_LENGTH);
        }

        @Test
        @DisplayName("Should add padding for non-final compound response")

                } else if (attempt < 30) {
                    Thread.sleep(1000); // Next 20 attempts: 1 second intervals
                } else {
                    Thread.sleep(2000); // Remaining attempts: 2 second intervals
                }
            }
        }

        // Provide more detailed error information
        String errorMessage = "SMB server did not become ready within timeout";

                        log.debug("Breaking on error " + resp);
                    }
                    break;
                }

                if (nextHead != null) {
                    // prepare remaining
                    // (e.g. set session/tree/fileid returned by the previous requests)
                    resp.prepare(nextHead);
                }
                curHead = nextHead;
            } finally {