private void persistHandle(HandleInfo info) {
        Path handleFile = stateDirectory.resolve(info.createGuid.toString() + ".handle");
        try (ObjectOutputStream oos = new ObjectOutputStream(
                Files.newOutputStream(handleFile))) {
            oos.writeObject(info);
        } catch (IOException e) {
            log.error("Failed to persist handle: " + info.path, e);
        }
    }