if (repositories != null) {
            return repositories;
        } else if (resolverRepositories != null) {
            return map(resolverRepositories, DefaultRemoteRepository::new);
        } else {
            throw new IllegalArgumentException("no remote repositories provided");
        }
    }

    @Nonnull
    @Override

        if (repository instanceof DefaultRemoteRepository) {
            return ((DefaultRemoteRepository) repository).getRepository();
        } else {
            // TODO
            throw new UnsupportedOperationException("Not implemented yet");
        }
    }

    @Override