protected static final int SLOW_OUTPUT_VALID_INPUT_DATA = 2;
  protected static final int SLOW_FUNC_VALID_INPUT_DATA = 3;
  private static final String RESULT_DATA = "SUCCESS";

  private SettableFuture<String> outputFuture;
  // Signals that the function is waiting to complete
  private CountDownLatch funcIsWaitingLatch;
  // Signals the function so it will complete
  private CountDownLatch funcCompletionLatch;

  protected static final int SLOW_OUTPUT_VALID_INPUT_DATA = 2;
  protected static final int SLOW_FUNC_VALID_INPUT_DATA = 3;
  private static final String RESULT_DATA = "SUCCESS";

  private SettableFuture<String> outputFuture;
  // Signals that the function is waiting to complete
  private CountDownLatch funcIsWaitingLatch;
  // Signals the function so it will complete
  private CountDownLatch funcCompletionLatch;

    assertThrows(CancellationException.class, () -> getDone(immediateCancelledFuture()));
  }

  public void testPending() throws ExecutionException {
    assertThrows(IllegalStateException.class, () -> getDone(SettableFuture.create()));
  }

   *       return value of this method as its cause
   * </ul>
   *
   * <p>This method is {@code protected} so that classes like {@code
   * com.google.common.util.concurrent.SettableFuture} do not expose it to their users as an
   * instance method. In the unlikely event that you need to call this method, call {@link
   * InternalFutures#tryInternalFastPathGetFailure(InternalFutureFailureAccess)}.
   */

    } finally {
      service.shutdown();
    }
  }

  public void testRejectedExecutionThrownWithMultipleCalls() throws Exception {
    CountDownLatch latch = new CountDownLatch(1);
    SettableFuture<?> future = SettableFuture.create();
    Executor delegate =
        new Executor() {
          @Override
          public void execute(Runnable task) {
            if (future.set(null)) {

/**
 * A {@link Future} implementation which always throws directly from calls to {@code get()} (i.e.
 * not wrapped in {@code ExecutionException}. For just a normal failure, use {@link
 * SettableFuture}).
 *
 * <p>Useful for testing the behavior of Future utilities against odd futures.
 *
 * @author Anthony Zana
 */
@GwtCompatible
@NullUnmarked

    assertEquals(expectedHelperClassName, helperField.get(null).getClass().getSimpleName());
  }

  private static ClassLoader getClassLoader(Set<String> blocklist) {
    String concurrentPackage = SettableFuture.class.getPackage().getName();
    ClassLoader classLoader = AggregateFutureStateFallbackAtomicHelperTest.class.getClassLoader();
    // we delegate to the current classloader so both loaders agree on classes like TestCase

    assertThat(helperMethod.invoke(null)).isEqualTo(expectedHelperClassName);
  }

  private static ClassLoader getClassLoader(Set<String> disallowedClassNames) {
    String concurrentPackage = SettableFuture.class.getPackage().getName();
    ClassLoader classLoader = AbstractFutureFallbackAtomicHelperTest.class.getClassLoader();
    // we delegate to the current classloader so both loaders agree on classes like TestCase

    assertThat(helperMethod.invoke(null)).isEqualTo(expectedHelperClassName);
  }

  private static ClassLoader getClassLoader(Set<String> disallowedClassNames) {
    String concurrentPackage = SettableFuture.class.getPackage().getName();
    ClassLoader classLoader = AbstractFutureFallbackAtomicHelperTest.class.getClassLoader();
    // we delegate to the current classloader so both loaders agree on classes like TestCase

     * have completed - namely after oldFuture is done, and taskFuture has either completed or been
     * cancelled before the callable started execution.
     */
    SettableFuture<@Nullable Void> newFuture = SettableFuture.create();

    ListenableFuture<@Nullable Void> oldFuture = ref.getAndSet(newFuture);

    // Invoke our task once the previous future completes.