synchronized (world) {
            String realmId = id;

            Random random = new Random();

            while (true) {
                try {
                    ClassRealm classRealm = world.newRealm(realmId, null);

                    logger.debug("Created new class realm {}", realmId);

                    return classRealm;

    private CoreExtensionEntry createExtension(CoreExtension extension, List<Artifact> artifacts) throws Exception {
        String realmId = "coreExtension>" + extension.getGroupId() + ":" + extension.getArtifactId() + ":"
                + extension.getVersion();
        final ClassRealm realm = classWorld.newRealm(realmId, null);
        Set<String> providedArtifacts = Collections.emptySet();

// list will read all entries from disk.
// Entries are returned sorted by modtime, oldest first.
// Underlying entry list in store is *not* updated.
func (store *QueueStore[_]) list() ([]os.DirEntry, error) {
	files, err := os.ReadDir(store.directory)
	if err != nil {
		return nil, err
	}

	// Sort the entries.
	sort.Slice(files, func(i, j int) bool {
		ii, err := files[i].Info()
		if err != nil {
			return false
		}

		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "V2Obj":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "ObjectV2")
					return
				}
				z.ObjectV2 = nil
			} else {
				if z.ObjectV2 == nil {
					z.ObjectV2 = new(struct {

			mkdir(path, perm, callback) { callback(enosys()); },
			open(path, flags, mode, callback) { callback(enosys()); },
			read(fd, buffer, offset, length, position, callback) { callback(enosys()); },
			readdir(path, callback) { callback(enosys()); },
			readlink(path, callback) { callback(enosys()); },
			rename(from, to, callback) { callback(enosys()); },
			rmdir(path, callback) { callback(enosys()); },

            if (classWorld != null) {
                for (ClassRealm realm : new ArrayList<>(classWorld.getRealms())) {
                    String realmId = realm.getId();
                    if (!realms.contains(realmId)) {
                        try {
                            classWorld.disposeRealm(realmId);
                        } catch (NoSuchRealmException ignored) {
                            // can't happen
                        }

	// If so, we try to add it to certificate manager.
	root, err := Open(globalCertsDir.Get())
	if err != nil {
		return nil, nil, false, err
	}
	defer root.Close()

	files, err := root.Readdir(-1)
	if err != nil {
		return nil, nil, false, err
	}
	for _, file := range files {
		// Ignore all
		// - regular files
		// - "CAs" directory
		// - any directory which starts with ".."

		// to verify for legacy version.
		if formatLegacy {
			// We only need this code if we are moving
			// from `xl.json` to `xl.meta`, we can avoid
			// one extra readdir operation here for all
			// new deployments.
			entries, err := readDir(currentDataPath)
			if err != nil && err != errFileNotFound {
				return res, osErrToFileErr(err)
			}
			for _, entry := range entries {

				z.ObjVersions[za0002], err = dc.ReadUint64()
				if err != nil {
					err = msgp.WrapError(err, "ObjVersions", za0002)
					return
				}
			}
		case "ats":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "AllTierStats")
					return
				}
				z.AllTierStats = nil
			} else {
				if z.AllTierStats == nil {
					z.AllTierStats = new(allTierStats)

		return
	}
	err = z.ReplicationState.DecodeMsg(dc)
	if err != nil {
		err = msgp.WrapError(err, "ReplicationState")
		return
	}
	if dc.IsNil() {
		err = dc.ReadNil()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		z.Data = nil
	} else {
		z.Data, err = dc.ReadBytes(z.Data)
		if err != nil {
			err = msgp.WrapError(err, "Data")