CacheTesting.drainRecencyQueues(cache);
    ticker.advance(2, MILLISECONDS);
    assertThat(keySet).containsExactly(3, 4, 5, 6, 7, 8, 9, 0, 1, 2);

    // 3 expires
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(4, 5, 6, 7, 8, 9, 0, 1, 2);

    // reorder
    getAll(cache, asList(5, 7, 9));
    CacheTesting.drainRecencyQueues(cache);

    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(2, MILLISECONDS);
    assertThat(keySet).containsExactly(3, 4, 5, 6, 7, 8, 9, 0, 1, 2);

    // 3 expires
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(4, 5, 6, 7, 8, 9, 0, 1, 2);

    // reorder
    getAll(cache, asList(5, 7, 9));
    CacheTesting.drainRecencyQueues(cache);

   * without throwing an exception.
   */
  static boolean hasLocalCache(Cache<?, ?> cache) {
    return (checkNotNull(cache) instanceof LocalLoadingCache);
  }

  static void drainRecencyQueues(Cache<?, ?> cache) {
    if (hasLocalCache(cache)) {
      LocalCache<?, ?> map = toLocalCache(cache);
      for (Segment<?, ?> segment : map.segments) {
        drainRecencyQueue(segment);
      }
    }

   * without throwing an exception.
   */
  static boolean hasLocalCache(Cache<?, ?> cache) {
    return (checkNotNull(cache) instanceof LocalLoadingCache);
  }

  static void drainRecencyQueues(Cache<?, ?> cache) {
    if (hasLocalCache(cache)) {
      LocalCache<?, ?> map = toLocalCache(cache);
      for (Segment<?, ?> segment : map.segments) {
        drainRecencyQueue(segment);
      }
    }