* That can be expensive.
 *
 * @author Mark Davis
 * @author Kevin Bourrillion
 * @since 2.0
 */
@GwtCompatible
public abstract class ComparisonChain {
  private ComparisonChain() {}

  /** Begins a new chained comparison statement. See example in the class documentation. */
  public static ComparisonChain start() {
    return ACTIVE;
  }

  private static final ComparisonChain ACTIVE =

        waiterThreadUpdater = lookup.findVarHandle(Waiter.class, "thread", Thread.class);
        waiterNextUpdater = lookup.findVarHandle(Waiter.class, "next", Waiter.class);
        waitersUpdater =
            lookup.findVarHandle(AbstractFutureState.class, "waitersField", Waiter.class);
        listenersUpdater =
            lookup.findVarHandle(AbstractFutureState.class, "listenersField", Listener.class);

        AtomicReferenceFieldUpdater.<Waiter, @Nullable Waiter>newUpdater(
            Waiter.class, Waiter.class, "next");
    private static final AtomicReferenceFieldUpdater<
            ? super AbstractFutureState<?>, @Nullable Waiter>
        waitersUpdater = newUpdater(AbstractFutureState.class, Waiter.class, "waitersField");
    private static final AtomicReferenceFieldUpdater<

///

Em Python, você pode criar Gerenciadores de Contexto ao <a href="https://docs.python.org/3/reference/datamodel.html#context-managers" class="external-link" target="_blank">criar uma classe com dois métodos: `__enter__()` e `__exit__()`</a>.

Você também pode usá-los dentro de dependências com `yield` do **FastAPI** ao utilizar
`with` ou `async with` dentro da função da dependência:

              <exclude>/module-info.class</exclude>
              <!-- Avoid duplicating compiled classes within the `META-INF/versions/9/` root. -->
              <exclude>META-INF/versions/9/com/**/*.class</exclude>
            </excludes>
            <archive>
              <manifestEntries>

              <exclude>/module-info.class</exclude>
              <!-- Avoid duplicating compiled classes within the `META-INF/versions/9/` root. -->
              <exclude>META-INF/versions/9/com/**/*.class</exclude>
            </excludes>
            <archive>
              <manifestEntries>

    ImmutableLongArray iia = ImmutableLongArray.of(0, 1, 3);
    assertThrows(IndexOutOfBoundsException.class, () -> iia.get(-1));
    assertThrows(IndexOutOfBoundsException.class, () -> iia.get(3));

    ImmutableLongArray sub = iia.subArray(1, 2);
    assertThrows(IndexOutOfBoundsException.class, () -> sub.get(-1));
  }

  public void testIndexOf() {

```

#### O `HTTPException` do FastAPI vs o `HTTPException` do Starlette { #fastapis-httpexception-vs-starlettes-httpexception }

O **FastAPI** tem o seu próprio `HTTPException`.

E a classe de erro `HTTPException` do **FastAPI** herda da classe de erro do `HTTPException` do Starlette.

/// info | Información

`OAuth2PasswordRequestForm` no es una clase especial para **FastAPI** como lo es `OAuth2PasswordBearer`.

`OAuth2PasswordBearer` hace que **FastAPI** sepa que es un esquema de seguridad. Así que se añade de esa manera a OpenAPI.

Pero `OAuth2PasswordRequestForm` es solo una dependencia de clase que podrías haber escrito tú mismo, o podrías haber declarado parámetros de `Form` directamente.

// check the order if so.
// TODO: Refactor to share code with SetTestBuilder etc.
@GwtCompatible
@NullMarked
public abstract class MapInterfaceTest<K extends @Nullable Object, V extends @Nullable Object>
    extends TestCase {

  /** A key type that is not assignable to any classes but Object. */
  private static final class IncompatibleKeyType {
    @Override