* ExecutorService#shutdownNow()} and returns.
   *
   * <p>For a version of this method that waits <i>indefinitely</i>, use {@link
   * ExecutorService#close}.
   *
   * @param service the {@code ExecutorService} to shut down
   * @param timeout the maximum time to wait for the {@code ExecutorService} to terminate

  }

  public void testListenInPoolThreadUsesGivenExecutor() throws Exception {
    ExecutorService executorService =
        newCachedThreadPool(new ThreadFactoryBuilder().setDaemon(true).build());
    NonListenableSettableFuture<String> abstractFuture = NonListenableSettableFuture.create();
    ExecutorSpy spy = new ExecutorSpy(executorService);
    ListenableFuture<String> listenableFuture = listenInPoolThread(abstractFuture, spy);

 *
 * @author Chris Nokleberg
 */
@J2ktIncompatible
@GwtIncompatible
abstract class WrappingExecutorService implements ExecutorService {
  private final ExecutorService delegate;

  protected WrappingExecutorService(ExecutorService delegate) {
    this.delegate = checkNotNull(delegate);
  }

  /**

     * test the forwarded methods
     */
  }

  @AndroidIncompatible // Mocking ExecutorService is forbidden there. TODO(b/218700094): Don't mock.
  public void testListeningDecorator_noWrapExecuteTask() {
    ExecutorService delegate = mock(ExecutorService.class);
    ListeningExecutorService service = listeningDecorator(delegate);
    Runnable task = () -> {};
    service.execute(task);

import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.jspecify.annotations.Nullable;

/**
 * A TimeLimiter that runs method calls in the background using an {@link ExecutorService}. If the

        .newClientBuilder()
        .dispatcher(Dispatcher(newVirtualThreadPerTaskExecutor()))
        .build()
  }

  private fun newVirtualThreadPerTaskExecutor(): ExecutorService =
    Executors::class.java.getMethod("newVirtualThreadPerTaskExecutor").invoke(null) as ExecutorService

  @Test
  fun testRequest() {
    server.enqueue(MockResponse())

    val request = Request(server.url("/"))

    client.newCall(request).execute().use {

     * test the forwarded methods
     */
  }

  @AndroidIncompatible // Mocking ExecutorService is forbidden there. TODO(b/218700094): Don't mock.
  public void testListeningDecorator_noWrapExecuteTask() {
    ExecutorService delegate = mock(ExecutorService.class);
    ListeningExecutorService service = listeningDecorator(delegate);
    Runnable task = () -> {};
    service.execute(task);

   */
  @get:Synchronized
  @set:Synchronized
  var idleCallback: Runnable? = null

  private var executorServiceOrNull: ExecutorService? = null

  @get:JvmName("executorService")
  @get:Synchronized
  val executorService: ExecutorService
    get() {
      if (executorServiceOrNull == null) {
        executorServiceOrNull =
          ThreadPoolExecutor(
            0,

    ExecutorService delegate =
        new ThreadPoolExecutor(0, Integer.MAX_VALUE, 60, SECONDS, new SynchronousQueue<>()) {
          @Override
          public void close() {
            throw new AssertionError(
                "ForwardingExecutorService should have used the default method"
                    + " ExecutorService.close() (which would forward to methods like shutdown() on"

import java.util.concurrent.Delayed;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy;
import java.util.concurrent.TimeUnit;

/**
 * Factory methods for {@link ExecutorService} for testing.
 *
 * @author Chris Nokleberg
 * @since 14.0
 */
@GwtIncompatible