public NavigableSet<E> subSet(
      @ParametricNullness E fromElement,
      boolean fromInclusive,
      @ParametricNullness E toElement,
      boolean toInclusive) {
    return delegate().subSet(fromElement, fromInclusive, toElement, toInclusive);
  }

  /**
   * A sensible definition of {@link #subSet(Object, boolean, Object, boolean)} in terms of the

     */
    assertEquals(RESULT, getUninterruptibly(future, -1, SECONDS));
  }

  private static FutureTask<Boolean> untimedInterruptReporter(
      final Future<?> future, final boolean allowInterruption) {
    return new FutureTask<>(
        new Callable<Boolean>() {
          @Override
          public Boolean call() throws Exception {
            Object actual;
            if (allowInterruption) {

    taskDone = false;
    Callable<Boolean> task =
        new Callable<Boolean>() {
          @Override
          public Boolean call() {
            taskDone = true;
            return taskDone;
          }
        };
    List<Future<Boolean>> futureList =
        executor.invokeAll(ImmutableList.of(task), 10, TimeUnit.MILLISECONDS);
    Future<Boolean> future = futureList.get(0);
    assertFalse(taskDone);

    taskDone = false;
    Callable<Boolean> task =
        new Callable<Boolean>() {
          @Override
          public Boolean call() {
            taskDone = true;
            return taskDone;
          }
        };
    List<Future<Boolean>> futureList =
        executor.invokeAll(ImmutableList.of(task), 10, TimeUnit.MILLISECONDS);
    Future<Boolean> future = futureList.get(0);
    assertFalse(taskDone);

  }

  @Override
  ContiguousSet<C> headSetImpl(C toElement, boolean inclusive) {
    return intersectionInCurrentDomain(Range.upTo(toElement, BoundType.forBoolean(inclusive)));
  }

  @Override
  @SuppressWarnings("unchecked") // TODO(cpovirk): Use a shared unsafeCompare method.
  ContiguousSet<C> subSetImpl(
      C fromElement, boolean fromInclusive, C toElement, boolean toInclusive) {

    delegate.forEach(action);
  }

  @Override
  public int size() {
    return delegate.size();
  }

  @Override
  public boolean contains(@CheckForNull Object object) {
    return delegate.contains(object);
  }

  @Override
  public boolean containsAll(Collection<?> collection) {
    if (collection instanceof ImmutableEnumSet<?>) {
      collection = ((ImmutableEnumSet<?>) collection).delegate;
    }

  public class TestGuard extends Monitor.Guard {
    private volatile boolean satisfied;

    public TestGuard(boolean satisfied) {
      super(MonitorTestCase.this.monitor);
      this.satisfied = satisfied;
    }

    @Override
    public boolean isSatisfied() {
      return this.satisfied;
    }

    public void setSatisfied(boolean satisfied) {
      this.satisfied = satisfied;
    }
  }

    return () -> {
      Thread currentThread = Thread.currentThread();
      String oldName = currentThread.getName();
      boolean restoreName = trySetName(nameSupplier.get(), currentThread);
      try {
        return callable.call();
      } finally {
        if (restoreName) {
          boolean unused = trySetName(oldName, currentThread);
        }
      }
    };
  }

  /**

        new ListenableFuture<String>() {
          @Override
          public boolean cancel(boolean interrupt) {
            return false;
          }

          @Override
          public boolean isDone() {
            return true;
          }

          @Override
          public boolean isCancelled() {
            return true; // BAD!!
          }

          @Override

        new ListenableFuture<String>() {
          @Override
          public boolean cancel(boolean interrupt) {
            return false;
          }

          @Override
          public boolean isDone() {
            return true;
          }

          @Override
          public boolean isCancelled() {
            return true; // BAD!!
          }

          @Override