LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder());
    assertThat(loader.getCount()).isEqualTo(0);

    Object key = new Object();
    Object value = map.get(key, loader);
    assertThat(loader.getCount()).isEqualTo(1);
    assertThat(map.get(key, loader)).isEqualTo(value);
    assertThat(loader.getCount()).isEqualTo(1);
  }

  public void testRecordReadOnCompute() throws ExecutionException {

    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder());
    assertThat(loader.getCount()).isEqualTo(0);

    Object key = new Object();
    Object value = map.get(key, loader);
    assertThat(loader.getCount()).isEqualTo(1);
    assertThat(map.get(key, loader)).isEqualTo(value);
    assertThat(loader.getCount()).isEqualTo(1);
  }

  public void testRecordReadOnCompute() throws ExecutionException {

    }

    @Override
    public int count(@Nullable Object element) {
      for (Entry<E> entry : entrySet()) {
        if (Objects.equals(entry.getElement(), element)) {
          return entry.getCount();
        }
      }
      return 0;
    }

    @Override
    public int add(E element, int occurrences) {
      checkArgument(occurrences >= 0);

   * The count is accessible via {@link #getCount}.
   */
  static class CountingLoader extends CacheLoader<Object, Object> {
    private final AtomicInteger count = new AtomicInteger();

    @Override
    public Object load(Object from) {
      count.incrementAndGet();
      return new Object();
    }

    public int getCount() {
      return count.get();
    }
  }

          protected void finalize() {
            latch.countDown();
          }
        };
    unused = null; // Hint to the JIT that unused is unreachable
    GcFinalization.await(latch);
    assertEquals(0, latch.getCount());
  }

  public void testAwaitDone_future() {
    SettableFuture<@Nullable Void> future = SettableFuture.create();
    Object unused =
        new Object() {

          protected void finalize() {
            latch.countDown();
          }
        };
    unused = null; // Hint to the JIT that unused is unreachable
    GcFinalization.await(latch);
    assertEquals(0, latch.getCount());
  }

  public void testAwaitDone_future() {
    SettableFuture<@Nullable Void> future = SettableFuture.create();
    Object unused =
        new Object() {

    @Override
    public void onRemoval(RemovalNotification<K, V> notification) {
      count.incrementAndGet();
      lastNotification = notification;
    }

    public int getCount() {
      return count.get();
    }

    public K getLastEvictedKey() {
      return lastNotification.getKey();
    }

    public V getLastEvictedValue() {
      return lastNotification.getValue();
    }

    future.addListener(
        new Runnable() {
          @Override
          public void run() {
            latch.countDown();
          }
        },
        exec);

    assertEquals(1, latch.getCount());
    assertFalse(future.isDone());
    assertFalse(future.isCancelled());
  }

  public void tearDown() {
    exec.shutdown();
  }

  public void testCompletedFuture(@Nullable Object expectedValue)

  @SuppressWarnings("removal") // b/260137033
  public static void await(CountDownLatch latch) {
    if (latch.getCount() == 0) {
      return;
    }
    long timeoutSeconds = timeoutSeconds();
    long deadline = System.nanoTime() + SECONDS.toNanos(timeoutSeconds);
    do {
      System.runFinalization();
      if (latch.getCount() == 0) {
        return;
      }
      System.gc();
      try {

      counts = new int[distinct];
      int i = 0;
      for (Entry<? extends Object> entry : multiset.entrySet()) {
        elements[i] = entry.getElement();
        counts[i] = entry.getCount();
        i++;
      }
    }

    Object readResolve() {
      ImmutableMultiset.Builder<Object> builder =
          new ImmutableMultiset.Builder<Object>(elements.length);