}
        this.streamInput = pagedBytes.streamInput();
    }

    @Benchmark
    public int readVInt() throws IOException {
        int res = 0;
        streamInput.reset();
        for (int i = 0; i < entries; i++) {
            res = res ^ streamInput.readVInt();
        }
        return res;
    }

			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "PartNumber":
			z.PartNumber, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "PartNumber")
				return
			}
		case "Algorithm":
			{
				var zb0002 uint
				zb0002, err = dc.ReadUint()
				if err != nil {
					err = msgp.WrapError(err, "Algorithm")
					return
				}
				z.Algorithm = BitrotAlgorithm(zb0002)

            int bufferCount = pacStream.readInt();
            int version = pacStream.readInt();

            if (version != PacConstants.PAC_VERSION) {
                throw new PACDecodingException("Unrecognized PAC version " + version);
            }

            for (int bufferIndex = 0; bufferIndex < bufferCount; bufferIndex++) {
                int bufferType = pacStream.readInt();

            final SID groupId = pacStream.readId();

            // Groups information
            final int groupCount = pacStream.readInt();
            final int groupPointer = pacStream.readInt();

            // User flags about PAC Logon Info content
            this.userFlags = pacStream.readInt();
            final boolean hasExtraSids = (this.userFlags & PacConstants.LOGON_EXTRA_SIDS) == PacConstants.LOGON_EXTRA_SIDS;

     */
    public String readString() throws IOException, PACDecodingException {
        final int totalChars = readInt();
        final int unusedChars = readInt();
        final int usedChars = readInt();

        if (unusedChars > totalChars || usedChars > totalChars - unusedChars) {
            throw new PACDecodingException("Malformed string in PAC");
        }

   * for the data format.
   */
  static <K extends @Nullable Object, V extends @Nullable Object> void populateMap(
      Map<K, V> map, ObjectInputStream stream) throws IOException, ClassNotFoundException {
    int size = stream.readInt();
    populateMap(map, stream, size);
  }

  /**
   * Populates a map by reading an input stream, as part of deserialization. See {@link #writeMap}
   * for the data format.
   */

   * for the data format.
   */
  static <K extends @Nullable Object, V extends @Nullable Object> void populateMap(
      Map<K, V> map, ObjectInputStream stream) throws IOException, ClassNotFoundException {
    int size = stream.readInt();
    populateMap(map, stream, size);
  }

  /**
   * Populates a map by reading an input stream, as part of deserialization. See {@link #writeMap}
   * for the data format.
   */

    assertThrows(IllegalStateException.class, in::readInt);
  }

  public void testNewDataInput_normal() {
    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);
    assertEquals(0x12345678, in.readInt());
    assertEquals(0x76543210, in.readInt());
    assertThrows(IllegalStateException.class, in::readInt);
  }

  public void testNewDataInput_readFully() {

    }
    val padding = if (flags and FLAG_PADDED != 0) source.readByte() and 0xff else 0
    val promisedStreamId = source.readInt() and 0x7fffffff
    val headerBlockLength = lengthWithoutPadding(length - 4, flags, padding) // - 4 for readInt().
    val headerBlock = readHeaderBlock(headerBlockLength, padding, flags, streamId)
    handler.pushPromise(streamId, promisedStreamId, headerBlock)
  }

    try {
      listSource().buffer().use { bufferedSource ->
        val totalBytes = bufferedSource.readInt()
        publicSuffixListBytes = bufferedSource.readByteString(totalBytes.toLong())

        val totalExceptionBytes = bufferedSource.readInt()
        publicSuffixExceptionListBytes = bufferedSource.readByteString(totalExceptionBytes.toLong())
      }

      synchronized(this) {