override fun read(): Int = inputStream.read()

    override fun readChar(): Char = readContext.readInt().toChar()

    override fun readUnsignedByte(): Int = readByte().let {
        require(it >= 0)
        it.toInt()
    }

    override fun readByte(): Byte = readContext.readByte()

    override fun readUnsignedShort(): Int = readShort().let {
        require(it >= 0)
        it.toInt()
    }

@Immutable
public class HashCodeSerializer extends AbstractSerializer<HashCode> {
    @Override
    public HashCode read(Decoder decoder) throws IOException {
        byte hashSize = decoder.readByte();
        byte[] hash = new byte[hashSize];
        decoder.readBytes(hash);
        return HashCode.fromBytes(hash);
    }

    @Override
    public void write(Encoder encoder, HashCode value) throws IOException {

func (r *Reader) Version() version.Version {
	return r.v
}

// ReadEvent reads and returns the next trace event in the byte stream.
func (r *Reader) ReadEvent() (Event, error) {
	evb, err := r.r.ReadByte()
	if err == io.EOF {
		return Event{}, io.EOF
	}
	if err != nil {
		return Event{}, err
	}
	if int(evb) >= len(r.specs) || evb == 0 {
		return Event{}, fmt.Errorf("invalid event type: %d", evb)
	}

}

// readBatch reads the next full batch from r.
func readBatch(r interface {
	io.Reader
	io.ByteReader
}) (batch, uint64, error) {
	// Read batch header byte.
	b, err := r.ReadByte()
	if err != nil {
		return batch{}, 0, err
	}
	if typ := event.Type(b); typ != go122.EvEventBatch && typ != go122.EvExperimentalBatch {
		return batch{}, 0, fmt.Errorf("expected batch event, got %s", go122.EventString(typ))

            long timestamp = decoder.readLong();
            long pid = decoder.readLong();
            DaemonExpirationStatus status = decoder.readBoolean() ? DaemonExpirationStatus.values()[decoder.readByte()] : null;
            String reason = decoder.readNullableString();
            return new DaemonStopEvent(new Date(timestamp), pid, status, reason);
        }

        @Override

            char[] charBuffer = new char[reader.getMaxStringLength()];
            for (int i = 1; i < reader.getItemCount(); i++) {
                int itemOffset = reader.getItem(i);
                if (itemOffset > 0 && reader.readByte(itemOffset - 1) == 7) {
                    // A CONSTANT_Class entry, read the class descriptor
                    String classDescriptor = reader.readUTF8(itemOffset, charBuffer);

        int valuesRead = 0;
        byte type = -1;
        long id;
        ResolvedArtifactSet artifacts;
        try {
            while (true) {
                type = decoder.readByte();
                valuesRead++;
                switch (type) {
                    case NODE:
                        id = decoder.readSmallLong();

	}

	switch hdr {
	case "$$\n":
		err = fmt.Errorf("import %q: old textual export format no longer supported (recompile library)", path)

	case "$$B\n":
		var exportFormat byte
		if exportFormat, err = buf.ReadByte(); err != nil {
			return
		}
		size--

		// The unified export format starts with a 'u'; the indexed export
		// format starts with an 'i'; and the older binary export format