master.put(key, plugin);
                    }
                }

                Map<Object, List<Plugin>> predecessors = new LinkedHashMap<>();
                List<Plugin> pending = new ArrayList<>();
                for (Plugin element : tgt) {
                    Object key = getPluginKey().apply(element);
                    Plugin existing = master.get(key);

        final ThreadOutputMuxer threadOutputMuxer = new ThreadOutputMuxer(projectBuildList, systemOut);

        final List<String> stringList = Arrays.asList(
                "Thinkin", "of", "a", "master", "plan", "Cuz", "ain’t", "nuthin", "but", "sweat", "inside", "my",
                "hand");
        Iterator<String> lyrics = stringList.iterator();

        ExecutorService executor = Executors.newFixedThreadPool(10);

public interface RepositorySystemSessionFactory {
    /**
     * Creates "ready to use" session builder instance. The factory does not set up one thing: the
     * {@link org.eclipse.aether.repository.WorkspaceReader}s, that is caller duty to figure out. Workspace readers
     * should be set up as very last thing before using resolver session, that is built by invoking
     * {@link SessionBuilder#build()} method.
     *

         * processes one artifact at a time and hence cannot associate the artifacts from the same project to use the
         * same version index. Allowing the caller to pass in metadata from a previous deployment allows to re-establish
         * the association between the artifacts of the same project.
         */