this.delegateRef = Preconditions.checkNotNull(delegate);
  }

  /** A runnable that is called when the delegate or the timer completes. */
  private static final class Fire<V extends @Nullable Object> implements Runnable {
    @CheckForNull @LazyInit TimeoutFuture<V> timeoutFutureRef;

    Fire(TimeoutFuture<V> timeoutFuture) {
      this.timeoutFutureRef = timeoutFuture;
    }

    @Override

        List<ClassRealmManagerDelegate> delegates = new ArrayList<>(this.delegates);

        if (!delegates.isEmpty()) {
            ClassRealmRequest request =
                    new DefaultClassRealmRequest(type, parent, parentImports, foreignImports, constituents);

            for (ClassRealmManagerDelegate delegate : delegates) {
                try {
                    delegate.setupRealm(classRealm, request);

    // this is a live injected collection
    protected final List<ArtifactFilterManagerDelegate> delegates;

    protected Set<String> excludedArtifacts;

    private final Set<String> coreArtifacts;

    @Inject
    public DefaultArtifactFilterManager(List<ArtifactFilterManagerDelegate> delegates, CoreExports coreExports) {
        this.delegates = delegates;
        this.coreArtifacts = coreExports.getExportedArtifacts();
    }

  private static final class NonCancellationPropagatingFuture<V extends @Nullable Object>
      extends AbstractFuture.TrustedFuture<V> implements Runnable {
    @CheckForNull @LazyInit private ListenableFuture<V> delegate;

    NonCancellationPropagatingFuture(final ListenableFuture<V> delegate) {
      this.delegate = delegate;
    }

    @Override

  private static final class NonCancellationPropagatingFuture<V extends @Nullable Object>
      extends AbstractFuture.TrustedFuture<V> implements Runnable {
    @CheckForNull @LazyInit private ListenableFuture<V> delegate;

    NonCancellationPropagatingFuture(final ListenableFuture<V> delegate) {
      this.delegate = delegate;
    }

    @Override

  public static ListeningExecutorService listeningDecorator(ExecutorService delegate) {
    return (delegate instanceof ListeningExecutorService)
        ? (ListeningExecutorService) delegate
        : (delegate instanceof ScheduledExecutorService)
            ? new ScheduledListeningDecorator((ScheduledExecutorService) delegate)
            : new ListeningDecorator(delegate);
  }

  /**

    protected Object delegate;

    public BaseObject() {}

    public BaseObject(Object delegate, BaseObject parent) {
        this.delegate = requireNonNull(delegate, "delegate cannot be null");
        this.childrenTracking = parent != null ? parent::replace : null;
    }

    public BaseObject(Object delegate, ChildrenTracking parent) {
        this.delegate = requireNonNull(delegate, "delegate cannot be null");

          }

          @Override
          public final Service stopAsync() {
            return delegate.stopAsync();
          }

          @Override
          public final void awaitRunning() {
            delegate.awaitRunning();
          }

          @Override
          public final void awaitRunning(long timeout, TimeUnit unit) throws TimeoutException {

        Thread.sleep(500); // to make sure queue is processed, cancellation applied

        Mockito.verify(delegate).transferInitiated(transferInitiatedEvent);
        Mockito.verify(delegate).transferStarted(transferStartedEvent);
        Mockito.verify(delegate).transferProgressed(transferProgressedEvent);
        Mockito.verify(delegate).transferSucceeded(transferSucceededEvent);
    }

    private static TransferEvent event(

    private final TestSortedSetGenerator<E> delegate;

    public SortedSetSubsetTestSetGenerator(
        TestSortedSetGenerator<E> delegate, Bound to, Bound from) {
      this.to = to;
      this.from = from;
      this.delegate = delegate;

      SortedSet<E> emptySet = delegate.create();
      this.comparator = emptySet.comparator();

      SampleElements<E> samples = delegate.samples();