}
                } while (!completedBuilds.contains(projectBuild));
            }
            running = false;
        }

        /*
        Wait until we are sure the print-stream thread is running.
         */

        public void waitUntilRunning(boolean expect) {
            while (!running == expect) {
                try {
                    Thread.sleep(10);

        setProjects(projects);
        this.repositorySystemSession = null;
    }

    /**
     * Adapt a {@link MavenExecutionRequest} to a {@link Settings} object for use in the Maven core.
     * We want to make sure that what is ask for in the execution request overrides what is in the settings.
     * The CLI feeds into an execution request so if a particular value is present in the execution request

            // those subtasks to finish.
            // This ensures the number of running workers is no more than
            // the defined parallism, while making sure the pool will not
            // be exhausted
            //
            return new ThreadPoolExecutor(
                    parallelism, Integer.MAX_VALUE, 0L, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<>()) {

     * @param artifactId never {@code null}
     * @param version can be {@code null}
     * @return the matching model or {@code null}
     * @throws IllegalStateException if version was null and multiple modules share the same groupId + artifactId
     */
    public Model get(String groupId, String artifactId, String version) {
        return modelsByGa.getOrDefault(new GAKey(groupId, artifactId), Collections.emptySet()).stream()

                MavenProject currentProject = session.getCurrentProject();
                try {
                    BuilderCommon.attachToThread(project); // Not totally sure if this is needed for anything
                    session.setCurrentProject(project);
                    projectBuilds.add(new ProjectSegment(project, taskSegment, session));
                } finally {

            path = path.replace("\\", "/");
            // ---------------------------------------------------------------------------------
            // I'm not sure if this last regexp was really intended to disallow the usage of
            // network paths as user.home directory. Unfortunately it did. I removed it and
            // have not detected any problems yet.

     * is in the Antlr plugin which comes bundled with a version of Antlr but the user often times needs
     * to use a specific version. We need to make sure the version that they specify takes precedence.
     */
    @Test
    void testMojoWhereInternallyStatedDependencyIsOverriddenByProject() throws Exception {}

    /**

        ArtifactHandler handler = newHandler(artifact);

        /*
         * NOTE: From Artifact.hasClassifier(), an empty string and a null both denote "no classifier". However, some
         * plugins only check for null, so be sure to nullify an empty classifier.
         */
        org.apache.maven.artifact.Artifact result = new org.apache.maven.artifact.DefaultArtifact(
                artifact.getGroupId(),
                artifact.getArtifactId(),

 * graph construction.
 * <p>
 * Extend this class {@code createXXX()} methods and override to customize, if needed. The contract of this class makes
 * sure that these (potentially overridden) methods are invoked only once, and instance created by those methods are
 * memorized and kept as long as supplier instance is kept open.
 * <p>