}

      /** Checks if the state is {@link #CANCELLED} or {@link #INTERRUPTED}. */
      boolean isCancelled() {
        return (getState() & (CANCELLED | INTERRUPTED)) != 0;
      }

      /** Checks if the state is {@link #INTERRUPTED}. */
      boolean wasInterrupted() {
        return getState() == INTERRUPTED;
      }

      }

      /** Checks if the state is {@link #CANCELLED} or {@link #INTERRUPTED}. */
      boolean isCancelled() {
        return (getState() & (CANCELLED | INTERRUPTED)) != 0;
      }

      /** Checks if the state is {@link #INTERRUPTED}. */
      boolean wasInterrupted() {
        return getState() == INTERRUPTED;
      }

            } catch (InterruptedException ex) {
              interrupted = true; // note interruption and retry
            }
          }
          if (e == null) {
            break; // we already waited enough, and there are no more elements in sight
          }
          buffer.add(e);
          added++;
        }
      }
    } finally {
      if (interrupted) {
        Thread.currentThread().interrupt();
      }

    assertFalse(Thread.interrupted());
    try {
      delayedFuture.get(20000, MILLISECONDS);
      fail("expected to be interrupted");
    } catch (InterruptedException expected) {
    } catch (TimeoutException e) {
      throw new RuntimeException(e);
    }

    // we were interrupted, but it's been cleared now
    assertFalse(Thread.interrupted());

    assertFalse(sleeper.completed);

    assertFalse(Thread.interrupted());
    try {
      delayedFuture.get(20000, MILLISECONDS);
      fail("expected to be interrupted");
    } catch (InterruptedException expected) {
    } catch (TimeoutException e) {
      throw new RuntimeException(e);
    }

    // we were interrupted, but it's been cleared now
    assertFalse(Thread.interrupted());

    assertFalse(sleeper.completed);

            } catch (InterruptedException ex) {
              interrupted = true; // note interruption and retry
            }
          }
          if (e == null) {
            break; // we already waited enough, and there are no more elements in sight
          }
          buffer.add(e);
          added++;
        }
      }
    } finally {
      if (interrupted) {
        Thread.currentThread().interrupt();
      }

      } else {
        AssertionFailedError afe = new AssertionFailedError(t.toString());
        afe.initCause(t);
        throw afe;
      }
    }

    if (Thread.interrupted()) {
      throw new AssertionFailedError("interrupted status set in main thread");
    }
  }

  /**
   * Records the given exception using {@link #threadRecordFailure}, then rethrows the exception,

  /**
   * Waits until the given future {@linkplain Future#isDone is done}, invoking the garbage collector
   * as necessary to try to ensure that this will happen.
   *
   * @throws RuntimeException if timed out or interrupted while waiting
   */
  @SuppressWarnings("removal") // b/487687332
  public static void awaitDone(Future<?> future) {
    if (future.isDone()) {
      return;
    }
    long timeoutSeconds = timeoutSeconds();

  /**
   * Waits until the given future {@linkplain Future#isDone is done}, invoking the garbage collector
   * as necessary to try to ensure that this will happen.
   *
   * @throws RuntimeException if timed out or interrupted while waiting
   */
  @SuppressWarnings("removal") // b/487687332
  public static void awaitDone(Future<?> future) {
    if (future.isDone()) {
      return;
    }
    long timeoutSeconds = timeoutSeconds();

    fakePool.execute(() -> Thread.currentThread().interrupt());
    // Run a task that expects that it is not interrupted while it is running.
    e.execute(() -> assertThat(Thread.currentThread().isInterrupted()).isFalse());

    // Run these together.
    fakePool.runAll();

    // Check that this thread has been marked as interrupted again now that the thread has been