for (ArtifactRepository repository : repositories) {
            result = 31 * result + repositoryHashCode(repository);
        }
        return result;
    }

    private static boolean repositoryEquals(ArtifactRepository r1, ArtifactRepository r2) {
        if (r1 == r2) {
            return true;
        }

        return Objects.equals(r1.getId(), r2.getId())

        if (r1.size() != r2.size()) {
            return false;
        }

        for (Iterator<RemoteRepository> it1 = r1.iterator(), it2 = r2.iterator(); it1.hasNext(); ) {
            if (!repositoryEquals(it1.next(), it2.next())) {
                return false;
            }
        }

        return true;
    }

    public static int repositoriesHashCode(List<RemoteRepository> repositories) {