byte[] nameBytes = originalFileName.getBytes(StandardCharsets.UTF_16LE);

        byte[] buffer = new byte[100];
        buffer[0] = 1; // replaceIfExists = true
        // Skip 7 reserved bytes (1-7)
        // Skip 8 bytes for RootDirectory (8-15)
        SMBUtil.writeInt4(nameBytes.length, buffer, 16);
        System.arraycopy(nameBytes, 0, buffer, 20, nameBytes.length);

        dstIndex += 8; // RootDirectory = 0

        final byte[] nameBytes = this.fileName.getBytes(StandardCharsets.UTF_16LE);

        SMBUtil.writeInt4(nameBytes.length, dst, dstIndex);
        dstIndex += 4;

        System.arraycopy(nameBytes, 0, dst, dstIndex, nameBytes.length);
        dstIndex += nameBytes.length;

        return dstIndex - start;
    }

    /**
     * {@inheritDoc}

        int bufferIndex = 0;
        int start = 0;

        // Write server name (16 bytes, null padded)
        byte[] nameBytes = serverName.getBytes(StandardCharsets.US_ASCII);
        System.arraycopy(nameBytes, 0, buffer, bufferIndex, Math.min(nameBytes.length, 15));
        bufferIndex += 16;

        // Write version major (1 byte)
        buffer[bufferIndex++] = (byte) versionMajor;

        // 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);

class MIENameTest {

    // Helper to build a valid buffer according to the expected layout.
    private static byte[] buildBuffer(byte[] oidDer, byte[] nameBytes) {
        byte[] tokId = new byte[] { 0x04, 0x01 };
        int oidLen = oidDer.length;
        int nameLen = nameBytes.length;

        byte[] buf = new byte[2 + 2 + oidLen + 4 + nameLen];
        int i = 0;
        // TOK_ID
        buf[i++] = tokId[0];

        assertEquals(32, SMBUtil.readInt4(buffer, 12));

        // Verify context name is encoded at offset 16
        byte[] nameBytes = new byte[4];
        System.arraycopy(buffer, 16, nameBytes, 0, 4);
        assertArrayEquals("RqLs".getBytes(), nameBytes);

        // Verify lease key is encoded at offset 24 (after header + name + padding)
        byte[] encodedKey = new byte[16];

     * @param nameBytes context name bytes
     * @return appropriate CreateContextResponse implementation or null if unknown
     */
    private static CreateContextResponse createContext(final byte[] nameBytes) {
        if (nameBytes == null || nameBytes.length != 4) {
            return null;
        }

        String contextName = new String(nameBytes, StandardCharsets.US_ASCII);

        String nameWithSpaces = "COMPUTER";
        byte[] nameBytes = new byte[16];
        System.arraycopy(nameWithSpaces.getBytes("US-ASCII"), 0, nameBytes, 0, nameWithSpaces.length());
        // Fill rest with spaces (0x20)
        for (int i = nameWithSpaces.length(); i < 15; i++) {
            nameBytes[i] = 0x20;
        }
        nameBytes[15] = 0x00; // Last byte for hex code position

            // Simulate the pattern from Smb2CreateResponse
            byte[] nameBytes = "SMB2_CREATE_CONTEXT".getBytes(StandardCharsets.UTF_8);
            byte[] dataBuffer = new byte[1024];
            Arrays.fill(dataBuffer, (byte) 0xAB);

            TestCreateContextResponse contextResponse = new TestCreateContextResponse(nameBytes);

            // Simulate decode call
            int dataOffset = 100;

        SMBUtil.writeInt2(dstIndex - getHeaderStart(), dst, nameOffsetOffset);

        System.arraycopy(nameBytes, 0, dst, dstIndex, nameBytes.length);
        if (nameBytes.length == 0) {
            // buffer must contain at least one byte
            dstIndex++;
        } else {
            dstIndex += nameBytes.length;
        }

        dstIndex += pad8(dstIndex);