return Ordering.natural().sortedCopy(insertionOrder);
                  }
                })
            .named("ForwardingSortedMultiset with standard impls")
            .withFeatures(
                CollectionSize.ANY,
                CollectionFeature.KNOWN_ORDER,
                CollectionFeature.GENERAL_PURPOSE,
                CollectionFeature.ALLOWS_NULL_QUERIES)

                    return Ordering.natural().sortedCopy(insertionOrder);
                  }
                })
            .named("ForwardingSortedMultiset with standard impls")
            .withFeatures(
                CollectionSize.ANY,
                CollectionFeature.KNOWN_ORDER,
                CollectionFeature.GENERAL_PURPOSE,
                CollectionFeature.ALLOWS_NULL_QUERIES)

    return Types.toString(runtimeType);
  }

  /** Implemented to support serialization of subclasses. */
  protected Object writeReplace() {
    // TypeResolver just transforms the type to our own impls that are Serializable
    // except TypeVariable.
    return of(new TypeResolver().resolveType(runtimeType));
  }

  /**

          immutableEntry((Class) Two.class, new Impl(2)),
          immutableEntry((Class) Three.class, new Impl(3)),
          immutableEntry((Class) Four.class, new Impl(4)),
          immutableEntry((Class) Five.class, new Impl(5)));
    }

    @Override
    @SuppressWarnings("unchecked")
    public Entry<Class, Impl>[] createArray(int length) {
      return (Entry<Class, Impl>[]) new Entry<?, ?>[length];

  private final int[][] intsToMul = new int[ARRAY_SIZE][2];
  private final long[][] longsToAdd = new long[ARRAY_SIZE][2];
  private final long[][] longsToMul = new long[ARRAY_SIZE][2];

  @Param({"APACHE", "GUAVA"})
  Impl impl;

  @BeforeExperiment
  void setUp() {
    for (int i = 0; i < ARRAY_SIZE; i++) {
      factorials[i] = RANDOM_SOURCE.nextInt(200);
      for (int j = 0; j < 2; j++) {

        @Override
        public Lock get() {
          return new ReentrantLock();
        }
      };

  @Param({"2", "8", "64", "1024", "65536"})
  int numStripes;

  @Param Impl impl;

  enum Impl {
    EAGER {
      @Override
      Striped<Lock> get(int stripes) {
        return Striped.lock(stripes);
      }
    },
    LAZY_SMALL {
      @Override
      Striped<Lock> get(int stripes) {

        @Override
        public Lock get() {
          return new ReentrantLock();
        }
      };

  @Param({"2", "8", "64", "1024", "65536"})
  int numStripes;

  @Param Impl impl;

  enum Impl {
    EAGER {
      @Override
      Striped<Lock> get(int stripes) {
        return Striped.lock(stripes);
      }
    },
    LAZY_SMALL {
      @Override
      Striped<Lock> get(int stripes) {

  })
  private int size;

  // "" means no fixed seed
  @Param("1234")
  private SpecialRandom random;

  @Param({"ImmutableSetImpl", "HashSetImpl"})
  private SetImpl impl;

  // the following must be set during setUp
  private CollectionBenchmarkSampleData sampleData;

  @BeforeExperiment
  void setUp() {
    sampleData = new CollectionBenchmarkSampleData(true, random, 0.8, size);

  @Param({"ImmutableSetImpl", "HashSetImpl"})
  private SetImpl impl;

  // the following must be set during setUp
  private Set<Element> setToTest;

  @BeforeExperiment
  void setUp() {
    CollectionBenchmarkSampleData sampleData =
        new CollectionBenchmarkSampleData(true, random, 0.8, size);
    setToTest = (Set<Element>) impl.create(sampleData.getValuesInSet());
  }

  @Benchmark

   * equal to any other equality groups added to this tester.
   *
   * <p>The {@code @Nullable} annotations on the {@code equalityGroup} parameter imply that the
   * objects, and the array itself, can be null. That is for programmer convenience, when the
   * objects come from factory methods that are themselves {@code @Nullable}. In reality neither the