public List<MavenProject> getDownstreamProjects(MavenProject project, boolean transitive) {
                return Collections.emptyList();
            }
        });

        final List<String> log = new ArrayList<>();

        MojoExecutionListener mojoListener = new MojoExecutionListener() {
            public void beforeMojoExecution(MojoExecutionEvent event) throws MojoExecutionException {