* period or an interrupt while waiting for the expected event will result in a {@link
 * RuntimeException}.
 *
 * <p>Here's an example that tests a {@code finalize} method:
 *
 * {@snippet :
 * final CountDownLatch latch = new CountDownLatch(1);
 * Object x = new MyClass() {
 *   ...
 *   protected void finalize() { latch.countDown(); ... }
 * };
 * x = null;  // Hint to the JIT that x is stack-unreachable
 * GcFinalization.await(latch);

    CountDownLatch computeSignal = new CountDownLatch(1);
    // tells the main thread when computation is pending
    CountDownLatch secondSignal = new CountDownLatch(1);
    // tells the main thread when the second get has started
    CountDownLatch thirdSignal = new CountDownLatch(1);
    // tells the main thread when the third get has started
    CountDownLatch fourthSignal = new CountDownLatch(1);

        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

  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

    private CountDownLatch startLatch;
    private CountDownLatch endLatch;

    @Test
    void testTransferProgressedWithPrintResourceNames() throws Exception {
        int size = 1000;
        ExecutorService service = Executors.newFixedThreadPool(size * 2);
        try {
            startLatch = new CountDownLatch(size);
            endLatch = new CountDownLatch(size);

 * period or an interrupt while waiting for the expected event will result in a {@link
 * RuntimeException}.
 *
 * <p>Here's an example that tests a {@code finalize} method:
 *
 * {@snippet :
 * final CountDownLatch latch = new CountDownLatch(1);
 * Object x = new MyClass() {
 *   ...
 *   protected void finalize() { latch.countDown(); ... }
 * };
 * x = null;  // Hint to the JIT that x is stack-unreachable
 * GcFinalization.await(latch);

    CountDownLatch computeSignal = new CountDownLatch(1);
    // tells the main thread when computation is pending
    CountDownLatch secondSignal = new CountDownLatch(1);
    // tells the main thread when the second get has started
    CountDownLatch thirdSignal = new CountDownLatch(1);
    // tells the main thread when the third get has started
    CountDownLatch fourthSignal = new CountDownLatch(1);

    waitUntilClosed(closingFuture);
    futureCancelled.countDown();
  }

  private <V> ValueAndCloser<V> finishToValueAndCloser(ClosingFuture<V> closingFuture) {
    CountDownLatch valueAndCloserSet = new CountDownLatch(1);
    closingFuture.finishToValueAndCloser(
        new ValueAndCloserConsumer<V>() {
          @Override
          public void accept(ValueAndCloser<V> valueAndCloser) {

      throws Exception {
    ExecutorService executorService = newFixedThreadPool(numberOfThreads);
    CountDownLatch startLatch = new CountDownLatch(numberOfThreads);
    CountDownLatch doneLatch = new CountDownLatch(numberOfThreads);
    for (int i = numberOfThreads; i > 0; i--) {
      @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored

import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ConcurrentNavigableMap;
import java.util.concurrent.ConcurrentSkipListMap;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executor;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadFactory;