this.topologicallySortedProjects = topologicallySortedProjects;

        return this;
    }

    @Override
    public List<MavenProject> getTopologicallySortedProjects() {
        return null == topologicallySortedProjects
                ? Collections.emptyList()
                : Collections.unmodifiableList(topologicallySortedProjects);
    }

    @Override