hand it off to another thread to write to it after `writeTo` returns.

    The `EventListener` may now see requests and responses interleaved in ways not previously
    permitted. For example, a listener may receive `responseHeadersStart()` followed by
    `requestBodyEnd()`, both on the same call. Such events may be triggered by different threads
    even for a single call.

Ele é muito simples e intuitivo. É projetado para ser facilmente extensível, e ter componentes modulares.

Ele tem:

* Performance seriamente impressionante.
* Suporte a WebSocket.
* Tarefas em segundo plano dentro do processo.
* Eventos de inicialização e encerramento.
* Cliente de testes construído com HTTPX.
* CORS, GZip, Arquivos Estáticos, respostas Streaming.
* Suporte para Sessão e Cookie.

                    throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id), this::asListHtml);
                    return null;
                });
    }

    /**
     * Print a thread dump.
     * @param form The edit form.
     * @return The HTML response.
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse threaddump(final EditForm form) {

    public void finalizeReferent() {
      finalizeReferentCalled = true;
    }
  }

  /**
   * Keeps a weak reference to the underlying reference queue. When this reference is cleared, we
   * know that the background thread has stopped and released its strong reference.
   */
  private WeakReference<ReferenceQueue<Object>> queueReference;

  @Test
  public void testThatFinalizerStops() {
    weaklyReferenceQueue();

 * This class encapsulates HTTP request parameters that can have multiple values,
 * such as query parameters, form parameters, or other request-related data.
 *
 * <p>This class is immutable and thread-safe. Once created, the parameter name
 * and values cannot be modified.</p>
 *
 */
public class RequestParameter {

    /** The name of the request parameter. */
    private final String name;

import org.apache.maven.wagon.providers.file.FileWagon;
import org.apache.maven.wagon.resource.Resource;

/**
 * Wagon used for test cases that annotate some methods. Note that this is not a thread-safe implementation.
 */
public class TestFileWagon extends FileWagon {
    private TestTransferListener testTransferListener;
    private boolean insideGet;

    @Deprecated

import org.codelibs.fess.Constants;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.taglib.FessFunctions;
import org.codelibs.fess.util.ComponentUtil;

/**
 * Abstract base class for monitor targets that implement timeout functionality.
 */
public abstract class MonitorTarget implements TimeoutTarget {

    /**
     * Default constructor.
     */
    public MonitorTarget() {
        // Default constructor

 *
 * <p>Note that although your APIs should be liberal in what they accept, your methods which
 * <i>return</i> iterables should make every attempt to return ones of the robust variety.
 *
 * <p>This testing utility is not thread-safe.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
public final class MinimalIterable<E extends @Nullable Object> implements Iterable<E> {

Aqui está um pouco dessa história.

## Alternativas { #alternatives }

Eu tenho criado APIs com requisitos complexos por vários anos (Aprendizado de Máquina, sistemas distribuídos, tarefas assíncronas, banco de dados NoSQL etc.), liderando vários times de desenvolvedores.

Como parte disso, eu precisava investigar, testar e usar muitas alternativas.

    CountDownLatch doneSignal = new CountDownLatch(1);
    Thread thread =
        new Thread(
            () -> {
              try {
                cache.get(key, loader);
              } catch (UncheckedExecutionException | ExecutionException e) {
                doneSignal.countDown();
              }
            });
    thread.start();

    boolean done = doneSignal.await(1, SECONDS);