ExecutorService service = newFixedThreadPool(4);
    ListenerCallQueue<Object> queue = new ListenerCallQueue<>();
    try {
      queue.addListener(listener, service);

      CountDownLatch latch = new CountDownLatch(1);
      Multiset<Object> counters = ConcurrentHashMultiset.create();
      queue.enqueue(incrementingEvent(counters, listener, 1));
      queue.enqueue(incrementingEvent(counters, listener, 2));

    ExecutorService service = newFixedThreadPool(4);
    ListenerCallQueue<Object> queue = new ListenerCallQueue<>();
    try {
      queue.addListener(listener, service);

      CountDownLatch latch = new CountDownLatch(1);
      Multiset<Object> counters = ConcurrentHashMultiset.create();
      queue.enqueue(incrementingEvent(counters, listener, 1));
      queue.enqueue(incrementingEvent(counters, listener, 2));

     */
    public void test_concurrentNameAccess() throws Exception {
        final int threadCount = 100;
        final int operationsPerThread = 100;
        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch endLatch = new CountDownLatch(threadCount);
        final AtomicInteger errorCount = new AtomicInteger(0);

        testTransformer.setName("concurrentName");

 */
@NullUnmarked
public class ListenableFutureTaskTest extends TestCase {

  private ExecutorService exec;

  protected final CountDownLatch runLatch = new CountDownLatch(1);
  protected final CountDownLatch taskLatch = new CountDownLatch(1);
  protected final CountDownLatch listenerLatch = new CountDownLatch(1);

  protected volatile boolean throwException = false;

  protected final ListenableFutureTask<Integer> task =

  // Ordinary tests of successful method execution
  // ----------------------------------------------------------------

  public void testAwait_countDownLatch() {
    CountDownLatch latch = new CountDownLatch(1);
    Object unused =
        new Object() {
          @SuppressWarnings({"removal", "Finalize"}) // b/260137033
          @Override
          protected void finalize() {
            latch.countDown();

  // Ordinary tests of successful method execution
  // ----------------------------------------------------------------

  public void testAwait_countDownLatch() {
    CountDownLatch latch = new CountDownLatch(1);
    Object unused =
        new Object() {
          @SuppressWarnings({"removal", "Finalize"}) // b/260137033
          @Override
          protected void finalize() {
            latch.countDown();

     */
    public void test_accessCount_concurrent() throws Exception {
        final int threadCount = 100;
        final int operationsPerThread = 1000;
        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch endLatch = new CountDownLatch(threadCount);

        ExecutorService executor = Executors.newFixedThreadPool(threadCount);

        for (int i = 0; i < threadCount; i++) {

        final ThreadSafeRuleManager threadSafeManager = new ThreadSafeRuleManager();
        final int threadCount = 10;
        final int rulesPerThread = 100;
        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch endLatch = new CountDownLatch(threadCount);

        for (int i = 0; i < threadCount; i++) {
            final int threadId = i;
            new Thread(new Runnable() {
                @Override

        // Given
        int threadCount = 10;
        int opsPerThread = 100;
        ExecutorService executor = Executors.newFixedThreadPool(threadCount);
        CountDownLatch startLatch = new CountDownLatch(1);
        CountDownLatch endLatch = new CountDownLatch(threadCount);
        AtomicInteger successCount = new AtomicInteger(0);
        List<Exception> exceptions = new ArrayList<>();

  private final ExecutorService exec;
  private final ListenableFuture<?> future;
  private final CountDownLatch latch;

  public ListenableFutureTester(ListenableFuture<?> future) {
    this.exec = newCachedThreadPool();
    this.future = checkNotNull(future);
    this.latch = new CountDownLatch(1);
  }

  public void setUp() {
    future.addListener(
        new Runnable() {
          @Override