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

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

    @Override
    protected void update(ByteBuffer bytes) {
      checkNotDone();
      digest.update(bytes);
    }

    private void checkNotDone() {

            return dataWireFormatReturn;
        }

        @Override
        protected int readSetupWireFormat(byte[] buffer, int bufferIndex, int len) {
            return 0;
        }

        @Override
        protected int readParametersWireFormat(byte[] buffer, int bufferIndex, int len) throws SMBProtocolDecodingException {
            if (throwExceptionOnReadParameters) {

            stream.write(b);
            collector.write(b);
        }

        @Override
        public void write(final byte[] b, final int off, final int len) throws IOException {
            stream.write(b, off, len);
            collector.write(b, off, len);
        }

        @Override
        public void write(final int b) throws IOException {
            stream.write(b);
            collector.write(b);

   */
  public static String join(String separator, char... array) {
    checkNotNull(separator);
    int len = array.length;
    if (len == 0) {
      return "";
    }

    StringBuilder builder = new StringBuilder(len + separator.length() * (len - 1));
    builder.append(array[0]);
    for (int i = 1; i < len; i++) {
      builder.append(separator).append(array[i]);
    }
    return builder.toString();
  }

        byte[] buf = new byte[256];
        int len = invokeProtectedInt(obj, "writeParameterWordsWireFormat", buf, 0);

        // Expected size: 2 (sendBuffer) + 2 (mpxCount) + 2 (vcNumber) + 4 (sessionKey) + 2 (blob length) + 4 (reserved) + 4 (capabilities)
        int expected = 2 + 2 + 2 + 4 + 2 + 4 + 4;
        assertEquals(expected, len);

        int off = 0;

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

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

    @Override
    protected void update(ByteBuffer bytes) {
      checkNotDone();
      digest.update(bytes);
    }

    private void checkNotDone() {

            long offVal = offField.getLong(req);
            assertEquals(2L, offVal, "Request offset should match skipped bytes");
        }

        @Test
        @DisplayName("read(byte[]) delegates to read(byte[],off,len)")
        void readArrayDelegates() throws Exception {
            SmbFileInputStream in = newStream();

            Smb2ReadResponse smb2Resp = mock(Smb2ReadResponse.class);

        final String p = props.getProperty(key);
        if (p != null) {
            final StringTokenizer tok = new StringTokenizer(p, delim);
            final int len = tok.countTokens();
            final InetAddress[] arr = new InetAddress[len];
            for (int i = 0; i < len; i++) {
                final String addr = tok.nextToken();
                try {
                    arr[i] = InetAddress.getByName(addr);

        @Override
        int readSetupWireFormat(byte[] buffer, int bufferIndex, int len) {
            return 0;
        }

        @Override
        int readParametersWireFormat(byte[] buffer, int bufferIndex, int len) {
            return 0;
        }

        @Override
        int readDataWireFormat(byte[] buffer, int bufferIndex, int len) {
            return 0;
        }

        // The error should occur when System.arraycopy is called.
        ByteEncodable encodable = new ByteEncodable(data, 1, 2); // off=1, len=2, data.length=2. 1+2 > 2

        byte[] dest = new byte[5];

        // Expect IndexOutOfBoundsException from System.arraycopy
        assertThrows(IndexOutOfBoundsException.class, () -> {