Thread waiter =
        new Thread() {
          @Override
          public void run() {
            try {
              service.awaitTermination(1, TimeUnit.DAYS);
            } catch (InterruptedException e) {
              return;
            }
          }
        };
    waiter.start();
    awaitTimedWaiting(waiter);
    service.shutdown();

 * <p>The set of supported keys will grow as {@code CacheBuilder} evolves, but existing keys will
 * never be removed.
 *
 * <p>Durations are represented by an integer, followed by one of "d", "h", "m", or "s",
 * representing days, hours, minutes, or seconds respectively. (There is currently no syntax to
 * request expiration in milliseconds, microseconds, or nanoseconds.)
 *

  public ImmutableMapFloodingTest() {
    super(
        Arrays.asList(ConstructionPathway.values()),
        n -> n * Math.log(n),
        ImmutableList.of(QueryOp.MAP_GET));
  }

  /** All the ways to create an ImmutableMap. */
  enum ConstructionPathway implements Construction<Map<Object, Object>> {
    COPY_OF_MAP {
      @Override
      public Map<Object, Object> create(List<?> keys) {

      Spliterator.OfPrimitive<E, C, ?> split = spliteratorOfPrimitive.trySplit();
      return split == null ? null : new GeneralSpliteratorOfPrimitive<>(split, consumerizer);
    }
  }

  /**
   * Different ways of decomposing a Spliterator, all of which must produce the same elements (up to
   * ordering, if Spliterator.ORDERED is not present).
   */
  enum SpliteratorDecompositionStrategy {
    NO_SPLIT_FOR_EACH_REMAINING {

          .testForwarding(Equals.class, NoDelegateToEquals.WRAPPER);
    } catch (AssertionFailedError expected) {
      return;
    }
    fail("Should have failed");
  }

  /** An interface for the 2 ways that a chaining call might be defined. */
  private interface ChainingCalls {
    // A method that is defined to 'return this'
    @CanIgnoreReturnValue
    ChainingCalls chainingCall();

    tester.testAllPublicStaticMethods(Predicates.class);
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testCascadingSerialization() throws Exception {
    // Eclipse says Predicate<Integer>; javac says Predicate<Object>.
    Predicate<? super Integer> nasty =
        Predicates.not(
            Predicates.and(
                Predicates.or(
                    Predicates.equalTo((Object) 1),

   */
  public List<Integer> asList() {
    /*
     * Typically we cache this kind of thing, but much repeated use of this view is a performance
     * anti-pattern anyway. If we cache, then everyone pays a price in memory footprint even if
     * they never use this method.
     */
    return new AsList(this);
  }

  static class AsList extends AbstractList<Integer> implements RandomAccess, Serializable {

   */
  public List<Double> asList() {
    /*
     * Typically we cache this kind of thing, but much repeated use of this view is a performance
     * anti-pattern anyway. If we cache, then everyone pays a price in memory footprint even if
     * they never use this method.
     */
    return new AsList(this);
  }

  static class AsList extends AbstractList<Double> implements RandomAccess, Serializable {

       * valid value. That's the best we can do, short of holding a reference to the most recently
       * seen value. And while we *could* do that, we aren't required to: Map.Entry explicitly says
       * that behavior is undefined when the backing map is modified through another API. (It even
       * permits us to throw IllegalStateException. Maybe we should have done that, but we probably

description: I want to make an existing feature better
labels: ["type=enhancement"]
body:
  - type: markdown
    attributes:
      value: >
        Filing feature requests is one of the most popular ways to contribute to Guava.


        Be aware, though: most feature requests are not accepted, even if they're suggested by
        a full-time Guava team member. [Feedback](https://stackoverflow.com/a/4543114) from our