this.externalRepositories = List.copyOf(externalRepositories);
        this.repositories = List.copyOf(externalRepositories);
        this.ids = new HashSet<>();
    }

    protected DefaultModelRepositoryHolder(DefaultModelRepositoryHolder holder) {
        this.session = holder.session;
        this.repositoryMerging = holder.repositoryMerging;
        this.pomRepositories = List.copyOf(holder.pomRepositories);

                ModelResolver modelResolver = new DefaultModelResolver();
                ModelRepositoryHolder modelRepositoryHolder = new DefaultModelRepositoryHolder(
                        iSessionWithRepos,
                        DefaultModelRepositoryHolder.RepositoryMerging.REQUEST_DOMINANT,
                        iSessionWithRepos.getRemoteRepositories());

            modelBuildingRequest.modelResolver(modelResolver);
            DefaultModelRepositoryHolder holder = new DefaultModelRepositoryHolder(
                    internalSession,
                    DefaultModelRepositoryHolder.RepositoryMerging.valueOf(
                            request.getRepositoryMerging().name()),
                    repositories.stream()

        }
        if (request.getModelRepositoryHolder() == null) {
            builder.modelRepositoryHolder(new DefaultModelRepositoryHolder(
                    request.getSession(),
                    DefaultModelRepositoryHolder.RepositoryMerging.POM_DOMINANT,
                    request.getSession().getRemoteRepositories()));
        }
        if (request.getModelResolver() == null) {