import static com.google.common.graph.TestUtil.sanityCheckSet;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.TruthJUnit.assume;
import static java.util.concurrent.Executors.newFixedThreadPool;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThrows;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import static com.google.common.graph.TestUtil.sanityCheckSet;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.TruthJUnit.assume;
import static java.util.concurrent.Executors.newFixedThreadPool;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThrows;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

   * is complete. It does so by using daemon threads and adding a shutdown hook to wait for their
   * completion.
   *
   * <p>This is mainly for fixed thread pools. See {@link Executors#newFixedThreadPool(int)}.
   *
   * @param executor the executor to modify to make sure it exits when the application is finished
   * @param terminationTimeout how long to wait for the executor to finish before terminating the
   *     JVM

    final ArrayList<ListenableFuture<Integer>> lengthChecks = new ArrayList<>();
    final List<Integer> completeLengthChecks;
    final int baseStackDepth;
    ExecutorService service = Executors.newFixedThreadPool(5);
    try {
      // Avoid counting frames from the executor itself, or the ExecutionSequencer
      baseStackDepth =
          serializer
              .submit(
                  new Callable<Integer>() {

    final ArrayList<ListenableFuture<Integer>> lengthChecks = new ArrayList<>();
    final List<Integer> completeLengthChecks;
    final int baseStackDepth;
    ExecutorService service = Executors.newFixedThreadPool(5);
    try {
      // Avoid counting frames from the executor itself, or the ExecutionSequencer
      baseStackDepth =
          serializer
              .submit(
                  new Callable<Integer>() {

    ImmutableList.Builder<Integer> builder = ImmutableList.builder();
    for (int i = 0; i < size; i++) {
      builder.add(i);
    }
    keys = builder.build();
    threadPool =
        Executors.newFixedThreadPool(threads, new ThreadFactoryBuilder().setDaemon(true).build());
  }

  @Benchmark
  long add(final int reps) throws ExecutionException, InterruptedException {
    return doMultithreadedLoop(