result = len > used ? used : len;
            if (used > i && result > i) {
                System.arraycopy(pipe_buf, beg_idx, b, off, i);
                off += i;
                System.arraycopy(pipe_buf, 0, b, off, result - i);
            } else {
                System.arraycopy(pipe_buf, beg_idx, b, off, result);
            }
            used -= result;

        // Name entry (18 bytes)
        String name = "TEST            ";
        System.arraycopy(name.getBytes("US-ASCII"), 0, src, srcIndex + 13, 16);
        src[srcIndex + 28] = 0x00; // hex code
        src[srcIndex + 29] = 0x04; // flags
        // MAC address (6 bytes)
        byte[] mac = new byte[6];
        System.arraycopy(mac, 0, src, srcIndex + 31, 6);
        // Stats (6 bytes)
        byte[] stats = new byte[6];

        byte[] buffer2 = new byte[100];

        System.arraycopy(firstData, 0, buffer1, 0, firstData.length);
        System.arraycopy(secondData, 0, buffer2, 0, secondData.length);

        // First read
        response.readDataWireFormat(buffer1, 0, firstData.length);
        byte[] firstResult = new byte[firstData.length];
        System.arraycopy(outputBuffer, 0, firstResult, 0, firstData.length);

        if (nonce.length == 12) {
            // For CCM cipher, pad nonce to 16 bytes with zeros
            System.arraycopy(nonce, 0, this.nonce, 0, 12);
            // Last 4 bytes remain zero-initialized
        } else if (nonce.length == 16) {
            // For GCM cipher, use full 16-byte nonce
            System.arraycopy(nonce, 0, this.nonce, 0, 16);
        } else {

        // Verify customData part
        byte[] actualCustomData = new byte[8];
        System.arraycopy(value, 8, actualCustomData, 0, 8);
        assertArrayEquals(customData, actualCustomData);

        // Verify machineId part
        byte[] actualMachineId = new byte[32];
        System.arraycopy(value, 16, actualMachineId, 0, 32);
        assertArrayEquals(machineId, actualMachineId);
    }

    /**

            return a;
        }
        @SuppressWarnings("unchecked")
        final T[] array = (T[]) Array.newInstance(a.getClass().getComponentType(), a.length + b.length);
        System.arraycopy(a, 0, array, 0, a.length);
        System.arraycopy(b, 0, array, a.length, b.length);
        return array;
    }

    /**
     * Returns an array that is the concatenation of two arrays.
     * <p>

        // Set number of entries
        setNumEntries(response, 1);

        // Write share name (13 bytes, null padded)
        byte[] nameBytes = shareName.getBytes(StandardCharsets.US_ASCII);
        System.arraycopy(nameBytes, 0, buffer, bufferIndex, Math.min(nameBytes.length, 13));
        bufferIndex += 14;

        // Write type (2 bytes)
        SMBUtil.writeInt2(shareType, buffer, bufferIndex);
        bufferIndex += 2;

        pos += 4;

        // Write payload data: input then output
        if (inputCount > 0 && inputBytes != null) {
            System.arraycopy(inputBytes, 0, buf, pos, inputCount);
            pos += inputCount;
        }
        if (outputCount > 0 && outputBytes != null) {
            System.arraycopy(outputBytes, 0, buf, pos, outputCount);
        }
        return buf;
    }

        int pos = 0;
        System.arraycopy(avFlagsData, 0, fullData, pos, avFlagsData.length);
        pos += avFlagsData.length;
        System.arraycopy(avTimestampData, 0, fullData, pos, avTimestampData.length);
        pos += avTimestampData.length;
        System.arraycopy(avTargetNameData, 0, fullData, pos, avTargetNameData.length);
        pos += avTargetNameData.length;
        System.arraycopy(eolData, 0, fullData, pos, eolData.length);

    int strCopyLen = len;
    int pos = 0;
    while (count != 0) {
      if ((count & 1) != 0) {
        System.arraycopy(strCopy, 0, array, pos, strCopyLen);
        pos += strCopyLen;
      }
      count >>= 1;
      if (count != 0) {
        System.arraycopy(strCopy, 0, strCopy, strCopyLen, strCopyLen);
        strCopyLen <<= 1;
      }
    }
    return new String(array);
  }

  @Benchmark