import org.jspecify.annotations.Nullable;

/**
 * An abstract implementation of {@link ListenableFuture}, intended for advanced users only. More
 * common ways to create a {@code ListenableFuture} include instantiating a {@link SettableFuture},
 * submitting a task to a {@link ListeningExecutorService}, and deriving a {@code Future} from an
 * existing one, typically using methods like {@link Futures#transform(ListenableFuture,

    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)}.
   */

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

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

    assertThat(helperField.get(null).getClass().getSimpleName()).isEqualTo(expectedHelperClassName);
  }

  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

    volatile ValueReference<K, V> oldValue;

    // TODO(fry): rename get, then extend AbstractFuture instead of containing SettableFuture
    final SettableFuture<V> futureValue = SettableFuture.create();
    final Stopwatch stopwatch = Stopwatch.createUnstarted();

    public LoadingValueReference() {
      this(LocalCache.<K, V>unset());
    }

    /*

  }

  public void testLongAsyncRefresh() throws Exception {
    FakeTicker ticker = new FakeTicker();
    CountDownLatch reloadStarted = new CountDownLatch(1);
    SettableFuture<Thread> threadAboutToBlockForRefresh = SettableFuture.create();

    ListeningExecutorService refreshExecutor = listeningDecorator(newSingleThreadExecutor());
    try {
      CacheBuilder<Object, Object> builder =

  }

  public void testLongAsyncRefresh() throws Exception {
    FakeTicker ticker = new FakeTicker();
    CountDownLatch reloadStarted = new CountDownLatch(1);
    SettableFuture<Thread> threadAboutToBlockForRefresh = SettableFuture.create();

    ListeningExecutorService refreshExecutor = listeningDecorator(newSingleThreadExecutor());
    try {
      CacheBuilder<Object, Object> builder =

    assertThat(helperField.get(null).getClass().getSimpleName()).isEqualTo(expectedHelperClassName);
  }

  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