this.topologicallySortedProjects = topologicallySortedProjects;

        return this;
    }

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

    @Override

        MavenExecutionResult result = new DefaultMavenExecutionResult();
        result.setTopologicallySortedProjects(null);
        List<MavenProject> projects = result.getTopologicallySortedProjects();
        assertNotNull(projects);
        assertTrue(
                projects.isEmpty(),
                "Expected collection to be empty but had " + projects.size() + " elements: " + projects);
    }

            if (result.canResume()) {
                logBuildResumeHint(context, "mvn [args] -r");
            } else if (!failedProjects.isEmpty()) {
                List<MavenProject> sortedProjects = result.getTopologicallySortedProjects();

                // Sort the failedProjects list in the topologically sorted order.
                failedProjects.sort(comparing(sortedProjects::indexOf));

            if (result.canResume()) {
                logBuildResumeHint("mvn [args] -r");
            } else if (!failedProjects.isEmpty()) {
                List<MavenProject> sortedProjects = result.getTopologicallySortedProjects();

                // Sort the failedProjects list in the topologically sorted order.
                failedProjects.sort(comparing(sortedProjects::indexOf));