`Two days wrong!' sighed the Hatter.  `I told you butter
wouldn't suit the works!' he added looking angrily at the March
Hare.

  `It was the BEST butter,' the March Hare meekly replied.

  `Yes, but some crumbs must have got in as well,' the Hatter
grumbled:  `you shouldn't have put it in with the bread-knife.'

  The March Hare took the watch and looked at it gloomily:  then

  `Two days wrong!' sighed the Hatter.  `I told you butter
wouldn't suit the works!' he added looking angrily at the March
Hare.

  `It was the BEST butter,' the March Hare meekly replied.

  `Yes, but some crumbs must have got in as well,' the Hatter
grumbled:  `you shouldn't have put it in with the bread-knife.'

  The March Hare took the watch and looked at it gloomily:  then

    try {
      CallerClass2.get(future);
      fail();
    } catch (CancellationException expected) {
      // There should be two CancellationException chained together.  The outer one should have the
      // stack trace of where the get() call was made, and the inner should have the stack trace of
      // where the immediateCancelledFuture() call was made.

  }

  /**
   * This method is a convenience for testing. Code should call {@link Segment#getLiveValue}
   * instead.
   */
  @VisibleForTesting
  boolean isLive(ReferenceEntry<K, V> entry, long now) {
    return segmentFor(entry.getHash()).getLiveValue(entry, now) != null;
  }

  /**
   * Returns the segment that should be used for a key with the given hash.
   *

            new CacheLoader<String, String>() {
              @Override
              public String load(String key) throws Exception {
                return cache.get(key2, identityLoader()); // loads a different key, should work
              }
            }));
  }

  public void testRecursiveLoad() throws InterruptedException {
    LocalCache<String, String> cache = makeLocalCache(createCacheBuilder());

            new CacheLoader<String, String>() {
              @Override
              public String load(String key) throws Exception {
                return cache.get(key2, identityLoader()); // loads a different key, should work
              }
            }));
  }

  public void testRecursiveLoad() throws InterruptedException {
    LocalCache<String, String> cache = makeLocalCache(createCacheBuilder());

    try {
      CallerClass2.get(future);
      fail();
    } catch (CancellationException expected) {
      // There should be two CancellationException chained together.  The outer one should have the
      // stack trace of where the get() call was made, and the inner should have the stack trace of
      // where the immediateCancelledFuture() call was made.

  private static String checkString(
      int length, int percent, String matchingChars, Random rand, boolean forceSlow, boolean web) {
    // Check whether we should ignore everything else and pull from the web.
    if (web) {
      StringBuilder builder = new StringBuilder(length);
      CharSamples sampler = new CharSamples(rand);
      for (int i = 0; i < length; i++) {

   */
  public static <C extends @Nullable Object, K extends C, V extends @Nullable Object>
      TreeMap<K, V> newTreeMap(@CheckForNull Comparator<C> comparator) {
    // Ideally, the extra type parameter "C" shouldn't be necessary. It is a
    // work-around of a compiler type inference quirk that prevents the
    // following code from being compiled:
    // Comparator<Class<?>> comparator = null;

   * about heavyweight listeners are also applicable to heavyweight functions passed to this method.
   * (Specifically, {@code directExecutor} functions should avoid heavyweight operations inside
   * {@code AsyncClosingFunction.apply}. Any heavyweight operations should occur in other threads
   * responsible for completing the returned {@code ClosingFuture}.)
   *