private final SyncContextFactory syncContextFactory;
    private final RepositoryEventDispatcher repositoryEventDispatcher;
    private final VersionScheme versionScheme;

    @Inject
    public DefaultVersionRangeResolver(
            MetadataResolver metadataResolver,
            SyncContextFactory syncContextFactory,
            RepositoryEventDispatcher repositoryEventDispatcher,
            VersionScheme versionScheme) {

        this.modelBuilder = Objects.requireNonNull(modelBuilder, "modelBuilder cannot be null");
        this.repositoryEventDispatcher =
                Objects.requireNonNull(repositoryEventDispatcher, "repositoryEventDispatcher cannot be null");
        this.modelCacheFactory = Objects.requireNonNull(modelCacheFactory, "modelCacheFactory cannot be null");
        this.artifactRelocationSources =

    private final SyncContextFactory syncContextFactory;
    private final RepositoryEventDispatcher repositoryEventDispatcher;

    @Inject
    public DefaultVersionResolver(
            MetadataResolver metadataResolver,
            SyncContextFactory syncContextFactory,
            RepositoryEventDispatcher repositoryEventDispatcher) {

        return new HashMap<>();
    }

    private RepositoryEventDispatcher repositoryEventDispatcher;

    public final RepositoryEventDispatcher getRepositoryEventDispatcher() {
        checkClosed();
        if (repositoryEventDispatcher == null) {
            repositoryEventDispatcher = createRepositoryEventDispatcher();
        }
        return repositoryEventDispatcher;
    }

        return new HashMap<>();
    }

    private RepositoryEventDispatcher repositoryEventDispatcher;

    public final RepositoryEventDispatcher getRepositoryEventDispatcher() {
        checkClosed();
        if (repositoryEventDispatcher == null) {
            repositoryEventDispatcher = createRepositoryEventDispatcher();
        }
        return repositoryEventDispatcher;
    }