.isFalse();
    }

    CacheTesting.expireEntries((LoadingCache<?, ?>) cache, EXPIRING_TIME, ticker);

    assertWithMessage("Map must be empty by now").that(cache.size()).isEqualTo(0);
    assertWithMessage("Eviction notifications must be received")
        .that(removalListener.getCount())
        .isEqualTo(10);

    CacheTesting.expireEntries((LoadingCache<?, ?>) cache, EXPIRING_TIME, ticker);

    void tryExpireEntries(long now) {
      if (tryLock()) {
        try {
          expireEntries(now);
        } finally {
          unlock();
          // don't call postWriteCleanup as we're in a read
        }
      }
    }

    @GuardedBy("this")
    void expireEntries(long now) {
      drainRecencyQueue();

      ReferenceEntry<K, V> e;

    void tryExpireEntries(long now) {
      if (tryLock()) {
        try {
          expireEntries(now);
        } finally {
          unlock();
          // don't call postWriteCleanup as we're in a read
        }
      }
    }

    @GuardedBy("this")
    void expireEntries(long now) {
      drainRecencyQueue();

      ReferenceEntry<K, V> e;