}

  public void testKeySet() {
    Map<String, Integer> map = create();
    Set<String> keySet = map.keySet();
    assertTrue(keySet instanceof SynchronizedSet);
    assertThat(((SynchronizedSet<?>) keySet).mutex).isSameInstanceAs(mutex);
  }

  public void testValues() {
    Map<String, Integer> map = create();
    Collection<Integer> values = map.values();

  }

  public void testKeySet() {
    Map<String, Integer> map = create();
    Set<String> keySet = map.keySet();
    assertTrue(keySet instanceof SynchronizedSet);
    assertThat(((SynchronizedSet<?>) keySet).mutex).isSameInstanceAs(mutex);
  }

  public void testValues() {
    Map<String, Integer> map = create();
    Collection<Integer> values = map.values();

        scopesToCollectForCurrentProject = scopesToCollect;
        scopesToResolveForCurrentProject = scopesToResolve;
        scopesToCollectForAggregatedProjects = Collections.synchronizedSet(new TreeSet<>());
        scopesToResolveForAggregatedProjects = Collections.synchronizedSet(new TreeSet<>());
    }

    public MavenProject getProject() {
        return project;
    }

    public Collection<String> getScopesToCollectForCurrentProject() {

 *
 * @since 3.0
 */
public class ReactorBuildStatus {
    private final ProjectDependencyGraph projectDependencyGraph;

    private final Collection<String> blackListedProjects = Collections.synchronizedSet(new HashSet<>());

    private volatile boolean halted = false;

    public ReactorBuildStatus(ProjectDependencyGraph projectDependencyGraph) {
        this.projectDependencyGraph = projectDependencyGraph;
    }

/**
 * Fetches HTML from a requested URL, follows the links, and repeats.
 */
public final class Crawler {
  private final OkHttpClient client;
  private final Set<HttpUrl> fetchedUrls = Collections.synchronizedSet(new LinkedHashSet<>());
  private final BlockingQueue<HttpUrl> queue;
  private final ConcurrentHashMap<String, AtomicInteger> hostnames = new ConcurrentHashMap<>();
  private final int hostLimit;