return concat(strongImplementations(), weakImplementations());
  }

  public void testNull() throws Exception {
    for (Striped<?> striped : allImplementations()) {
      new NullPointerTester().testAllPublicInstanceMethods(striped);
    }
  }

  public void testSizes() {
    // not bothering testing all variations, since we know they share implementations
    assertThat(Striped.lock(100).size()).isAtLeast(100);

    assertEquals(expectedHash, in.hash());
  }

  public void testChecksForNull() throws Exception {
    NullPointerTester tester = new NullPointerTester();

    tester.testAllPublicInstanceMethods(new HashingInputStream(Hashing.md5(), buffer));
    tester.testAllPublicStaticMethods(HashingInputStream.class);
    tester.testAllPublicConstructors(HashingInputStream.class);
  }

    tester.testAllPublicStaticMethods(ImmutableMap.class);
    tester.testAllPublicInstanceMethods(new ImmutableMap.Builder<Object, Object>());
    tester.testAllPublicInstanceMethods(ImmutableMap.of());
    tester.testAllPublicInstanceMethods(ImmutableMap.of("one", 1));
    tester.testAllPublicInstanceMethods(ImmutableMap.of("one", 1, "two", 2, "three", 3));
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNullPointerInstance() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 2, 'c', "bar", 3, 'd');
    new NullPointerTester().testAllPublicInstanceMethods(table);
  }

  public void testNullArguments() {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicStaticMethods(CaseFormat.class);
    for (CaseFormat format : CaseFormat.values()) {
      tester.testAllPublicInstanceMethods(format);
    }
  }

  public void testLowerHyphenToLowerHyphen() {
    assertThat(LOWER_HYPHEN.to(LOWER_HYPHEN, "foo")).isEqualTo("foo");

    NullPointerTester npTester = new NullPointerTester();
    npTester.testAllPublicConstructors(ThreadFactoryBuilder.class);
    npTester.testAllPublicStaticMethods(ThreadFactoryBuilder.class);
    npTester.testAllPublicInstanceMethods(builder);
  }

  private static String rootLocaleFormat(String format, Object... args) {
    return String.format(Locale.ROOT, format, args);
  }

    tester.testAllPublicInstanceMethods(isWooString);
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testContains_nulls() throws Exception {
    NullPointerTester tester = new NullPointerTester();
    Predicate<CharSequence> isWooPattern = Predicates.contains(Pattern.compile("Woo"));

    tester.testAllPublicInstanceMethods(isWooPattern);
  }

    tester.testAllPublicStaticMethods(ImmutableListMultimap.class);
    tester.ignore(ImmutableListMultimap.class.getMethod("get", Object.class));
    tester.testAllPublicInstanceMethods(ImmutableListMultimap.of());
    tester.testAllPublicInstanceMethods(ImmutableListMultimap.of("a", 1));
  }

                .testForwarding(String.class, Functions.<String>identity()));
  }

  public void testNulls() {
    new NullPointerTester()
        .setDefault(Class.class, Runnable.class)
        .testAllPublicInstanceMethods(new ForwardingWrapperTester());
  }

  private <T> void assertFailure(
      Class<T> interfaceType,
      Function<T, ? extends T> wrapperFunction,
      String... expectedMessages) {
    try {

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNullPointerInstance() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 2, 'c', "bar", 3, 'd');
    new NullPointerTester().testAllPublicInstanceMethods(table);
  }