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