}
        encoder.writeSmallInt(event.getTotalProgress());

        if ((flags & BUILD_OPERATION_ID) != 0) {
            encoder.writeSmallLong(buildOperationId.getId());
        }
    }

    @Override
    public ProgressStartEvent read(Decoder decoder) throws Exception {
        long flags = decoder.readSmallInt();
        OperationIdentifier progressOperationId = new OperationIdentifier(decoder.readSmallLong());

}

func decodeListItem(obj *Unknown, decoders []Decoder) (Object, error) {
	for _, decoder := range decoders {
		// TODO: Decode based on ContentType.
		obj, err := Decode(decoder, obj.Raw)
		if err != nil {
			if IsNotRegisteredError(err) {
				continue
			}
			return nil, err
		}
		return obj, nil
	}
	// could not decode, so leave the object as Unknown, but give the decoders the

        }
    }

    private void writeStatusScheme(Encoder encoder, ComponentMetadata md) throws IOException {
        List<String> statusScheme = md.getStatusScheme();
        encoder.writeSmallInt(statusScheme.size());
        for (String s : statusScheme) {
            encoder.writeString(s);
        }
    }

    private List<String> readStatusScheme(Decoder decoder) throws IOException {
        int size = decoder.readSmallInt();

    }

    @Override
    public ComponentSelectionReason read(Decoder decoder) throws IOException {
        ComponentSelectionDescriptor[] descriptions = readDescriptions(decoder);
        return ComponentSelectionReasons.of(descriptions);
    }

    private ComponentSelectionDescriptor[] readDescriptions(Decoder decoder) throws IOException {
        int size = decoder.readSmallInt();

    public ModuleMetadataCacheEntry read(Decoder decoder) throws Exception {
        byte type = decoder.readByte();
        switch (type) {
            case ModuleMetadataCacheEntry.TYPE_MISSING:
                long createTimestamp = decoder.readLong();
                return new MissingModuleCacheEntry(createTimestamp);
            case ModuleMetadataCacheEntry.TYPE_PRESENT:
                boolean isChanging = decoder.readBoolean();

        }

        @Override
        public ClassAnalysis read(Decoder decoder) throws Exception {
            String className = interner.intern(decoder.readString());
            String dependencyToAllReason = decoder.readNullableString();
            Set<String> privateClasses = stringSetSerializer.read(decoder);
            Set<String> accessibleClasses = stringSetSerializer.read(decoder);

    }

    @Override
    public void write(Encoder encoder, ModuleVersionIdentifier value) throws IOException {
        encoder.writeString(value.getGroup());
        encoder.writeString(value.getName());
        encoder.writeString(value.getVersion());
    }

    @Override
    public ModuleVersionIdentifier read(Decoder decoder) throws IOException {
        String group = decoder.readString();

        encoder.writeBinary(moduleSource.getSha1().toByteArray());
    }

    @Override
    public MetadataFileSource decode(Decoder decoder) throws IOException {
        String group = decoder.readString();
        String module = decoder.readString();
        String version = decoder.readString();
        String name = decoder.readString();
        byte[] sha1 = decoder.readBinary();

        long id = decoder.readSmallLong();
        String className = decoder.readString();
        String classDisplayName = decoder.readString();
        long startTime = decoder.readLong();
        TestClassResult result = new TestClassResult(id, className, classDisplayName, startTime);
        int testMethodCount = decoder.readSmallInt();

            fingerprints.put(absolutePath, fingerprint);
        }
        return fingerprints.build();
    }

    private FileSystemLocationFingerprint readFingerprint(Decoder decoder) throws IOException {
        FileType fileType = readFileType(decoder);
        HashCode contentHash = readContentHash(fileType, decoder);

        byte fingerprintKind = decoder.readByte();
        switch (fingerprintKind) {