// When
        byte[] bytes;
        try (ByteArrayOutputStream bout = new ByteArrayOutputStream(); ObjectOutputStream oout = new ObjectOutputStream(bout)) {
            oout.writeObject(original);
            oout.flush();
            bytes = bout.toByteArray();
        }

        SpnegoException restored;

   * @throws IllegalArgumentException if {@code bytes} has fewer than 2 elements
   */
  @GwtIncompatible // doesn't work
  public static char fromByteArray(byte[] bytes) {
    checkArgument(bytes.length >= BYTES, "array too small: %s < %s", bytes.length, BYTES);
    return fromBytes(bytes[0], bytes[1]);
  }

  /**
   * Returns the {@code char} value whose byte representation is the given 2 bytes, in big-endian

        return isEstablished;
    }

    /**
     * Gets the server's NTLM challenge bytes.
     * @return the server challenge bytes
     */
    public byte[] getServerChallenge() {
        return serverChallenge;
    }

    /**
     * Gets the signing key for message authentication.
     * @return the signing key bytes
     */
    public byte[] getSigningKey() {
        return signingKey;
    }

        // structureSize (LE) - includes 1 byte of the variable part
        SMBUtil.writeInt2(49, buf, pos);
        pos += 2;
        // 2 reserved bytes
        pos += 2;
        // ctlCode
        SMBUtil.writeInt4(ctlCode, buf, pos);
        pos += 4;
        // fileId (16 bytes)
        byte[] fid = fileId != null ? fileId : new byte[16];
        System.arraycopy(fid, 0, buf, pos, 16);
        pos += 16;

    }

    @Test
    @DisplayName("Test successful decode with data")
    void testDecodeWithData() throws SMBProtocolDecodingException {
        // Prepare test data
        byte[] buffer = new byte[24]; // 16 bytes header + 8 bytes data
        int bufferIndex = 0;

        // Set up test values
        int namedPipeState = 0x03; // NP_NOWAIT | NP_READMODE_MESSAGE
        int readDataAvailable = 100;
        int numberOfMessages = 2;

    }

    /**
     * Sets the minimum number of bytes that must be read for the operation to succeed
     *
     * @param minimumCount
     *            the minimumCount to set
     */
    public void setMinimumCount(final int minimumCount) {
        this.minimumCount = minimumCount;
    }

    /**
     * Sets the number of bytes remaining to be read after this request
     *

    void testReadnMultipleCalls() throws IOException {
        when(mockInputStream.read(any(byte[].class), anyInt(), anyInt())).thenReturn(2) // First read returns 2 bytes
                .thenReturn(2) // Second read returns 2 bytes
                .thenReturn(1); // Third read returns 1 byte

        byte[] buffer = new byte[10];
        int bytesRead = SessionServicePacket.readn(mockInputStream, buffer, 0, 5);

   *
   * @throws IllegalArgumentException if {@code bytes} has fewer than 8 elements
   */
  public static long fromByteArray(byte[] bytes) {
    checkArgument(bytes.length >= BYTES, "array too small: %s < %s", bytes.length, BYTES);
    return fromBytes(
        bytes[0], bytes[1], bytes[2], bytes[3], bytes[4], bytes[5], bytes[6], bytes[7]);
  }

  /**

        // Then
        // Size should be aligned to 8 bytes: SMB2_HEADER_LENGTH + 4 bytes for cancel structure
        int expectedSize = ((Smb2Constants.SMB2_HEADER_LENGTH + 4 + 7) / 8) * 8;
        assertEquals(expectedSize, size, "Size calculation should be correct and 8-byte aligned");
    }

    @Test
    @DisplayName("Test writeBytesWireFormat writes correct bytes")
    void testWriteBytesWireFormat() {
        // Given

import java.io.OutputStream;

/**
 * An OutputStream that counts the number of bytes written.
 *
 * @author Chris Nokleberg
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
public final class CountingOutputStream extends FilterOutputStream {

  private long count;

  /**
   * Wraps another output stream, counting the number of bytes written.
   *
   * @param out the output stream to be wrapped
   */