* @param out the output stream
     * @return the number of bytes copied
     */
    protected static int copyInternal(final InputStream in, final OutputStream out) {
        try {
            final byte[] buf = new byte[DEFAULT_BUF_SIZE];
            int len;
            int amount = 0;
            while ((len = in.read(buf)) != -1) {
                out.write(buf, 0, len);
                amount += len;

    void testDeriveKeys_DifferentSessionKeySizes() {
        // Test with various session key sizes
        int[] keySizes = { 8, 16, 24, 32, 64, 128 };
        int dialect = Smb2Constants.SMB2_DIALECT_0311;

        for (int size : keySizes) {
            // Given
            byte[] testKey = new byte[size];
            new SecureRandom().nextBytes(testKey);

            // When

        // Test size calculation
        int size = request.size();
        int expectedRawSize = Smb2Constants.SMB2_HEADER_LENGTH + 32 + 64;
        int expectedSize = (expectedRawSize + 7) & ~7;
        assertEquals(expectedSize, size);

        // Test wire format writing
        byte[] buffer = new byte[512];
        int bytesWritten = request.writeBytesWireFormat(buffer, 64);

    private final int bytes;
    private boolean done;

    private MessageDigestHasher(MessageDigest digest, int bytes) {
      this.digest = digest;
      this.bytes = bytes;
    }

    @Override
    protected void update(byte b) {
      checkNotDone();
      digest.update(b);
    }

    @Override
    protected void update(byte[] b, int off, int len) {
      checkNotDone();

     * @param size the number of hex digits to write (will be left-padded with zeros)
     */
    public static void toHexChars(int val, final char dst[], final int dstIndex, int size) {
        while (size > 0) {
            final int i = dstIndex + size - 1;
            if (i < dst.length) {
                dst[i] = HEX_DIGITS[val & 0x000F];
            }
            if (val != 0) {

     */

    @Override
    public synchronized int read(final byte[] b, int off, int len) throws IOException {
        if (len == 0) {
            return 0;
        }
        int tot = 0;

        while (true) {
            while (bip > 0) {
                n = in.read(b, off, Math.min(len, bip));
                if (n == -1) {
                    return tot > 0 ? tot : -1;
                }
                tot += n;

     */
    @Override
    public int size() {
        return size8(Smb2Constants.SMB2_HEADER_LENGTH + 24);
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#writeBytesWireFormat(byte[], int)
     */
    @Override
    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        SMBUtil.writeInt2(24, dst, dstIndex);

    input = Strings.repeat(text, length);
  }

  @Benchmark
  int charSplitter(int reps) {
    int total = 0;

    for (int i = 0; i < reps; i++) {
      total += Iterables.size(CHAR_SPLITTER.split(input));
    }

    return total;
  }

  @Benchmark
  int stringSplitter(int reps) {
    int total = 0;

    for (int i = 0; i < reps; i++) {
      total += Iterables.size(STRING_SPLITTER.split(input));

    }

    @Override
    protected int writeParameterWordsWireFormat(final byte[] dst, final int dstIndex) {
        SMBUtil.writeInt2(this.searchAttributes, dst, dstIndex);
        return 2;
    }

    @Override
    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;

        dst[dstIndex] = (byte) 0x04;
        dstIndex++;

    }

    @Override
    public Entry<K, V>[] createArray(int length) {
      return generator.createArray(length);
    }

    @Override
    public Iterable<Entry<K, V>> order(List<Entry<K, V>> insertionOrder) {
      return generator.order(insertionOrder);
    }

    @SuppressWarnings("unchecked")
    @Override
    public K[] createKeyArray(int length) {
      return (K[]) new Object[length];
    }