derived.cancel(false);
    assertTrue(primary.isCancelled());
    assertFalse(primary.wasInterrupted());
  }

  @J2ktIncompatible
  @GwtIncompatible // mocks
  // TODO(cpovirk): eliminate use of mocks
  public void testCatchingAsync_resultCancelledAfterFallback() throws Exception {
    final SettableFuture<Integer> secondary = SettableFuture.create();

import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReferenceArray;
import java.util.concurrent.locks.ReentrantLock;
import java.util.function.BiFunction;
import java.util.function.BiPredicate;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.logging.Level;

import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import junit.framework.TestCase;

/**
 * Tests for {@link Uninterruptibles}.
 *
 * @author Anthony Zana
 */

import com.google.common.util.concurrent.InterruptibleTask.Blocker;
import java.nio.channels.spi.AbstractInterruptibleChannel;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.LockSupport;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

public final class InterruptibleTaskTest extends TestCase {

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.locks.AbstractQueuedSynchronizer;
import org.checkerframework.checker.nullness.qual.Nullable;

/** Utilities for the AbstractFutureBenchmarks */
final class AbstractFutureBenchmarks {
  private AbstractFutureBenchmarks() {}

    assertEquals(0, cms.count("a"));
    assertTrue(cms.removeExactly("b", 2));
    assertEquals(1, cms.count("b"));
  }

  public void testIteratorRemove_actualMap() {
    // Override to avoid using mocks.
    multiset = ConcurrentHashMultiset.create();

    multiset.add(KEY);
    multiset.add(KEY + "_2");
    multiset.add(KEY);

    int mutations = 0;

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.locks.AbstractQueuedSynchronizer;
import org.checkerframework.checker.nullness.qual.Nullable;

/** Utilities for the AbstractFutureBenchmarks */
final class AbstractFutureBenchmarks {
  private AbstractFutureBenchmarks() {}

import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.locks.LockSupport;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link AbstractFuture}.
 *

 * object). So it is important to not call {@link #dispatch} while holding any locks. This is why
 * {@link #enqueue} and {@link #dispatch} are 2 different methods. It is expected that the decision
 * to run a particular event is made during the state change, but the decision to actually invoke
 * the listeners can be delayed slightly so that locks can be dropped. Also, because {@link

import java.util.concurrent.Semaphore;
import java.util.concurrent.atomic.AtomicReferenceArray;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import org.checkerframework.checker.nullness.qual.Nullable;

/**