* <p>This class is very similar to {@link SequentialExecutor} with the exception that events can
   * be added without necessarily executing immediately.
   */
  private static final class PerListenerQueue<L> implements Runnable {
    final L listener;
    final Executor executor;

    @GuardedBy("this")
    final Queue<ListenerCallQueue.Event<L>> waitQueue = new ArrayDeque<>();

    @GuardedBy("this")

     * @param exceptionListener the exception listener for handling exceptions
     */
    public void connect(final Consumer<HttpURLConnection> actionListener, final Consumer<Exception> exceptionListener) {
        final Runnable task = () -> {
            if (paramList != null) {
                char sp;
                if (url.indexOf('?') == -1) {
                    sp = '?';
                } else {
                    sp = '&';

    assertThat(a4.isExecuted()).isFalse()
    assertThat(a4.isCanceled()).isFalse()
  }

  @Test
  fun idleCallbackInvokedWhenIdle() {
    val idle = AtomicBoolean()
    dispatcher.idleCallback = Runnable { idle.set(true) }
    client.newCall(newRequest("http://a/1")).enqueue(callback)
    client.newCall(newRequest("http://a/2")).enqueue(callback)
    executor.finishJob("http://a/1")
    assertThat(idle.get()).isFalse()

          q.put(new Object());
        }
        return null;
      } finally {
        doneProducing.countDown();
      }
    }
  }

  private static class Interrupter implements Runnable {
    final Thread threadToInterrupt;

    Interrupter(Thread threadToInterrupt) {
      this.threadToInterrupt = threadToInterrupt;
    }

    @Override
    public void run() {
      try {

@SuppressWarnings("ShortCircuitBoolean")
abstract class AbstractTransformFuture<
        I extends @Nullable Object, O extends @Nullable Object, F, T extends @Nullable Object>
    extends FluentFuture.TrustedFuture<O> implements Runnable {
  static <I extends @Nullable Object, O extends @Nullable Object> ListenableFuture<O> createAsync(
      ListenableFuture<I> input,
      AsyncFunction<? super I, ? extends O> function,
      Executor executor) {

        " to " + redactedUrl()
    )

  internal fun redactedUrl(): String = originalRequest.url.redact()

  inner class AsyncCall(
    private val responseCallback: Callback,
  ) : Runnable {
    @Volatile var callsPerHost = AtomicInteger(0)
      private set

    fun reuseCallsPerHostFrom(other: AsyncCall) {
      this.callsPerHost = other.callsPerHost
    }

    val host: String

      ImmutableCollection<? extends Future<? extends InputT>> localFuturesOrNull =
          collectsValues ? localFutures : null;
      Runnable listener = () -> decrementCountAndMaybeComplete(localFuturesOrNull);
      for (ListenableFuture<? extends InputT> future : localFutures) {
        if (future.isDone()) {

	public final fun getIdleCallback ()Ljava/lang/Runnable;
	public final fun getMaxRequests ()I
	public final fun getMaxRequestsPerHost ()I
	public final fun queuedCalls ()Ljava/util/List;
	public final fun queuedCallsCount ()I
	public final fun runningCalls ()Ljava/util/List;
	public final fun runningCallsCount ()I
	public final fun setIdleCallback (Ljava/lang/Runnable;)V
	public final fun setMaxRequests (I)V

    val maxRequestsPerHost: Int = dispatcher.maxRequestsPerHost
    dispatcher.maxRequestsPerHost = 0
    val executorService: ExecutorService = dispatcher.executorService
    dispatcher.idleCallback = Runnable { ({ TODO() })() }
    val queuedCalls: List<Call> = dispatcher.queuedCalls()
    val runningCalls: List<Call> = dispatcher.runningCalls()
    val queuedCallsCount: Int = dispatcher.queuedCallsCount()

        thumbnailTaskQueue = new LinkedBlockingQueue<>(thumbnailTaskQueueSize);
        generating = !Constants.TRUE.equalsIgnoreCase(System.getProperty("fess.thumbnail.process"));
        thumbnailQueueThread = new Thread((Runnable) () -> {
            final List<Tuple3<String, String, String>> taskList = new ArrayList<>();
            while (generating) {
                try {