}

  /**
   * Invokes {@code latch.}{@link CountDownLatch#await(long, TimeUnit) await(timeout, unit)}
   * uninterruptibly.
   */
  @J2ktIncompatible
  @GwtIncompatible // concurrency
  @SuppressWarnings("GoodTime") // should accept a java.time.Duration
  public static boolean awaitUninterruptibly(CountDownLatch latch, long timeout, TimeUnit unit) {
    boolean interrupted = false;
    try {

   * the head of the list.
   */

  /** Returns the time that this entry was last accessed, in ns. */
  @SuppressWarnings("GoodTime")
  long getAccessTime();

  /** Sets the entry access time in ns. */
  @SuppressWarnings("GoodTime") // b/122668874
  void setAccessTime(long time);

  /** Returns the next entry in the access queue. */
  ReferenceEntry<K, V> getNextInAccessQueue();

   * the head of the list.
   */

  /** Returns the time that this entry was last accessed, in ns. */
  @SuppressWarnings("GoodTime")
  long getAccessTime();

  /** Sets the entry access time in ns. */
  @SuppressWarnings("GoodTime") // b/122668874
  void setAccessTime(long time);

  /** Returns the next entry in the access queue. */
  ReferenceEntry<K, V> getNextInAccessQueue();

  @Nullable Strength keyStrength;
  @Nullable Strength valueStrength;

  @SuppressWarnings("GoodTime") // should be a Duration
  long expireAfterWriteNanos = UNSET_INT;

  @SuppressWarnings("GoodTime") // should be a Duration
  long expireAfterAccessNanos = UNSET_INT;

  @SuppressWarnings("GoodTime") // should be a Duration
  long refreshNanos = UNSET_INT;

  @Nullable Equivalence<Object> keyEquivalence;

    public void recordMisses(int count) {
      missCount.add(count);
    }

    @SuppressWarnings("GoodTime") // b/122668874
    @Override
    public void recordLoadSuccess(long loadTime) {
      loadSuccessCount.increment();
      totalLoadTime.add(loadTime);
    }

    @SuppressWarnings("GoodTime") // b/122668874
    @Override
    public void recordLoadException(long loadTime) {

  @Nullable Strength keyStrength;
  @Nullable Strength valueStrength;

  @SuppressWarnings("GoodTime") // should be a Duration
  long expireAfterWriteNanos = UNSET_INT;

  @SuppressWarnings("GoodTime") // should be a Duration
  long expireAfterAccessNanos = UNSET_INT;

  @SuppressWarnings("GoodTime") // should be a Duration
  long refreshNanos = UNSET_INT;

  @Nullable Equivalence<Object> keyEquivalence;

    return enter(toNanosSaturated(time), NANOSECONDS);
  }

  /**
   * Enters this monitor. Blocks at most the given time.
   *
   * @return whether the monitor was entered
   */
  @SuppressWarnings("GoodTime") // should accept a java.time.Duration
  public boolean enter(long time, TimeUnit unit) {
    long timeoutNanos = toSafeNanos(time, unit);
    ReentrantLock lock = this.lock;
    if (!fair && lock.tryLock()) {

  }

  @SuppressWarnings("GoodTime")
  private long currentTimeNanos() {
    return ticker.read();
  }

  private void alertListenerIfPresent(K key, V value, RemovalCause cause) {
    if (removalListener != null) {
      removalListener.onRemoval(RemovalNotification.create(key, value, cause));
    }
  }

  @SuppressWarnings("GoodTime") // timestamps as numeric primitives

   * @param unit the time unit of the warmupPeriod argument
   * @throws IllegalArgumentException if {@code permitsPerSecond} is negative or zero or {@code
   *     warmupPeriod} is negative
   */
  @SuppressWarnings("GoodTime") // should accept a java.time.Duration
  public static RateLimiter create(double permitsPerSecond, long warmupPeriod, TimeUnit unit) {
    checkArgument(warmupPeriod >= 0, "warmupPeriod must not be negative: %s", warmupPeriod);

   * @param unit the unit that {@code duration} is expressed in
   * @throws IllegalArgumentException if {@code duration} is not positive
   * @since 2.0
   */
  @SuppressWarnings("GoodTime") // Prefer the Duration overload
  public static <T extends @Nullable Object> Supplier<T> memoizeWithExpiration(
      Supplier<T> delegate, long duration, TimeUnit unit) {
    checkNotNull(delegate);