// is undefined in shutdown hooks.
                    // This is because the logging code installs a shutdown hook of its
                    // own. See Cleaner class inside {@link LogManager}.
                    service.shutdown();
                    service.awaitTermination(terminationTimeout, timeUnit);
                  } catch (InterruptedException ignored) {

        @SuppressWarnings("unchecked")
        E targetReturnValueFromNext = (E) targetReturnValue;
        /*
         * We have an Iterator<E> and want to cast it to
         * MultiExceptionListIterator. Because we're inside an
         * AbstractIteratorTester<E>, that's implicitly a cast to
         * AbstractIteratorTester<E>.MultiExceptionListIterator. The runtime
         * won't be able to verify the AbstractIteratorTester<E> part, so it's

        @SuppressWarnings("unchecked")
        E targetReturnValueFromNext = (E) targetReturnValue;
        /*
         * We have an Iterator<E> and want to cast it to
         * MultiExceptionListIterator. Because we're inside an
         * AbstractIteratorTester<E>, that's implicitly a cast to
         * AbstractIteratorTester<E>.MultiExceptionListIterator. The runtime
         * won't be able to verify the AbstractIteratorTester<E> part, so it's

     * them immediately thereafter.
     *
     * They may be subsequently nulled out by TreeMultiset.clear(). I think that the only place that
     * we can reference a node whose fields have been cleared is inside the iterator (and presumably
     * only under concurrent modification).
     *
     * To access these fields when you know that they are not null, call the pred() and succ()

    ReferenceQueue<V> getValueReferenceQueueForTesting() {
      throw new AssertionError();
    }

    /** Unsafely extracts the weak value reference inside of the given {@code entry}. */
    WeakValueReference<K, V, E> getWeakValueReferenceForTesting(InternalEntry<K, V, ?> entry) {
      throw new AssertionError();
    }

    /**

    // don't execute 'immediately'.  By checking isDone here we avoid that.
    // A corollary to all that is that we don't need to check isDone inside the loop because if we
    // get into the loop we know that we weren't done when we entered and therefore we aren't under
    // an obligation to execute 'immediately'.
    if (!isDone()) {

            checkEntryNotNull(key, value);
            keys[i] = key;
            values[i] = value;
          }
        } else {
          // Need to sort and check for nulls and dupes.
          // Inline the Comparator implementation rather than transforming with a Function
          // to save code size.
          Arrays.sort(
              entryArray,
              0,
              size,

  /*
   * If we make these calls inline inside toImmutableSortedMultiset, we get an Animal Sniffer error,
   * despite the @IgnoreJRERequirement annotation there. My assumption is that, because javac
   * generates a synthetic method for the body of the lambda, the actual method calls that Animal
   * Sniffer is flagging don't appear inside toImmutableSortedMultiset but rather inside that

   * 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}.)
   *

  private static <K, V> LocalCache<K, V> makeLocalCache(
      CacheBuilder<? super K, ? super V> builder, CacheLoader<? super K, V> loader) {
    return new LocalCache<>(builder, loader);
  }

  // TODO(cpovirk): Inline createCacheBuilder()?

  private static CacheBuilder<Object, Object> createCacheBuilder() {
    return CacheBuilder.newBuilder();
  }

  // constructor tests

  public void testDefaults() {