import org.apache.maven.artifact.repository.layout.ArtifactRepositoryLayout;
import org.apache.maven.bridge.MavenRepositorySystem;
import org.apache.maven.execution.DefaultMavenExecutionRequest;
import org.apache.maven.execution.DefaultMavenExecutionResult;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.internal.impl.DefaultLookup;
import org.apache.maven.internal.impl.DefaultSessionFactory;

   *       hash(x}} consistently return the same value provided {@code x} remains unchanged
   *       according to the definition of the equivalence. The hash need not remain consistent from
   *       one execution of an application to another execution of the same application.
   *   <li>It is <i>distributable across equivalence</i>: for any references {@code x} and {@code

     *
     * @param charset the character encoding to set
     */
    public void setCharset(final String charset) {
        this.charset = charset;
    }

    /**
     * Executes a HEAD request for the given URL.
     * @param url The URL to request.
     * @return The ResponseData.
     */
    @Override
    public ResponseData doHead(final String url) {
        try {

# Exceptions - `HTTPException` and `WebSocketException`

These are the exceptions that you can raise to show errors to the client.

When you raise an exception, as would happen with normal Python, the rest of the execution is aborted. This way you can raise these exceptions from anywhere in the code to abort a request and show the error to the client.

You can use:

* `HTTPException`
* `WebSocketException`

 */

@NullUnmarked
public class AbstractFutureFallbackAtomicHelperTest extends TestCase {

  // stash these in static fields to avoid loading them over and over again (speeds up test
  // execution significantly)

  /**
   * This classloader disallows {@link java.lang.invoke.VarHandle}, which will prevent us from
   * selecting the {@code VarHandleAtomicHelper} strategy.
   */

## Ejecuta el código

Todos los bloques de código pueden ser copiados y usados directamente (de hecho, son archivos Python probados).

Para ejecutar cualquiera de los ejemplos, copia el código a un archivo `main.py`, y comienza `fastapi dev` con:

<div class="termy">

```console

{* ../../docs_src/background_tasks/tutorial001.py hl[14] *}

`.add_task()` recibe como argumentos:

* Una función de tarea para ejecutar en segundo plano (`write_notification`).
* Cualquier secuencia de argumentos que deba pasarse a la función de tarea en orden (`email`).

        .build();
    Request request = new Request.Builder()
        .url(url)
        .build();
    Call call = httpClient.newCall(request);
    try (Response response = call.execute()) {
      JsonAdapter<OAuthSession> jsonAdapter = moshi.adapter(OAuthSession.class);
      return jsonAdapter.fromJson(response.body().source());
    }
  }

  /** See https://api.slack.com/methods/rtm.start. */

 *  Breaking: Replace our parameters-based JUnit 5 extension with a new annotation, `@StartStop`.
    Put this annotation on a `MockWebServer` property and the extension will start it before your
    test executes and stop it after it completes. No further configuration is required.

    ```kotlin
    @StartStop val server = MockWebServer()
    ```

                    }
                    response = builder.execute().actionGet(settings.getSearchTimeout());
                } else {
                    response = client.prepareSearchScroll(scrollId)
                            .setScroll(settings.getScrollTimeout())
                            .execute()
                            .actionGet(settings.getSearchTimeout());