long now = ticker.read();
    for (Segment<?, ?> segment : cchm.segments) {
      expireEntries(segment, now);
      assertEquals("Expiration queue must be empty by now", 0, writeQueueSize(segment));
      assertEquals("Expiration queue must be empty by now", 0, accessQueueSize(segment));
      assertEquals("Segments must be empty by now", 0, segmentSize(segment));
    }

          ReferenceEntry<K, V> e = getEntry(key, hash);
          if (e != null) {
            long now = map.ticker.read();
            V value = getLiveValue(e, now);
            if (value != null) {
              recordRead(e, now);
              statsCounter.recordHits(1);
              return scheduleRefresh(e, key, hash, value, now, loader);
            }
            ValueReference<K, V> valueReference = e.getValueReference();

   *
   * @since 28.0
   */
  @GwtIncompatible
  @J2ktIncompatible
  @CanIgnoreReturnValue
  @SuppressWarnings("Java7ApiChecker") // guava-android can rely on library desugaring now.
  public FakeTicker advance(Duration duration) {
    return advance(duration.toNanos());
  }

  /**
   * Sets the increment applied to the ticker whenever it is queried.
   *

   */
  /*
   * The new array contains nulls, even if the old array did not. If we wanted to be accurate, we
   * would declare a return type of `@Nullable T[]`. However, we've decided not to think too hard
   * about arrays for now, as they're a mess. (We previously discussed this in the review of
   * ObjectArrays, which is the main caller of this method.)
   */
  static <T extends @Nullable Object> T[] newArray(T[] reference, int length) {

    // Assert that the BF "might" have all of the even numbers.
    for (int i = 0; i < numInsertions * 2; i += 2) {
      assertTrue(bf.mightContain(Integer.toString(i)));
    }

    // Now we check for known false positives using a set of known false positives.
    // (These are all of the false positives under 900.)
    ImmutableSet<Integer> falsePositives =
        ImmutableSet.of(

    long now = ticker.read();
    for (Segment<?, ?> segment : cchm.segments) {
      expireEntries(segment, now);
      assertEquals("Expiration queue must be empty by now", 0, writeQueueSize(segment));
      assertEquals("Expiration queue must be empty by now", 0, accessQueueSize(segment));
      assertEquals("Segments must be empty by now", 0, segmentSize(segment));
    }

     * 3. We expect the client's get() to throw an InterruptedException.
     * 4. We expect the client thread's interrupt state to be false.
     * 5. The client thread again makes a blocking call to get().
     * 6. Now the result becomes available.
     * 7. We expect get() to return this result.
     * 8. We expect the test thread's interrupt state to be false.
     */
    InterruptionUtil.requestInterruptIn(200, TimeUnit.MILLISECONDS);

never happened, and now here I am in the middle of one!  There
ought to be a book written about me, that there ought!  And when
I grow up, I'll write one--but I'm grown up now,' she added in a
sorrowful tone; `at least there's no room to grow up any more
HERE.'

  `But then,' thought Alice, `shall I NEVER get any older than I
am now?  That'll be a comfort, one way--never to be an old woman--

@GwtCompatible
@ElementTypesAreNonnullByDefault
public interface RemovalListener<K, V> {
  /**
   * Notifies the listener that a removal occurred at some point in the past.
   *
   * <p>This does not always signify that the key is now absent from the cache, as it may have
   * already been re-added.
   */
  // Technically should accept RemovalNotification<? extends K, ? extends V>, but because

 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/FunctionalExplained">the use of functional types</a>.
 *
 * <h3>For Java 8+ users</h3>
 *
 * <p>This interface is now a legacy type. Use {@code java.util.function.Supplier} (or the
 * appropriate primitive specialization such as {@code IntSupplier}) instead whenever possible.