assertTrue(set.contains(2));
    assertTrue(set.contains(3));
    assertFalse(set.contains(4));
  }

  // TODO: https://youtrack.jetbrains.com/issue/KT-71001/ - Enable when Kotlin throws expected CCE.
  @J2ktIncompatible
  public void testContains_typeMismatch() {
    ImmutableSortedSet<Integer> set = ContiguousSet.create(Range.open(0, 4), integers());
    assertFalse(set.contains((Object) "blah"));
  }

  }

  C endpoint() {
    return endpoint;
  }

  @SuppressWarnings("unchecked") // catching CCE
  @Override
  public boolean equals(@Nullable Object obj) {
    if (obj instanceof Cut) {
      // It might not really be a Cut<C>, but we'll catch a CCE if it's not
      Cut<C> that = (Cut<C>) obj;
      try {
        int compareResult = compareTo(that);
        return compareResult == 0;

    assertTrue(set.contains(2));
    assertTrue(set.contains(3));
    assertFalse(set.contains(4));
  }

  // TODO: https://youtrack.jetbrains.com/issue/KT-71001/ - Enable when Kotlin throws expected CCE.
  @J2ktIncompatible
  public void testContains_typeMismatch() {
    ImmutableSortedSet<Integer> set = ContiguousSet.create(Range.open(0, 4), integers());
    assertFalse(set.contains((Object) "blah"));
  }

    // Pretend the comparator can compare anything. If it turns out it can't
    // compare a and b, we should get a CCE or NPE on the subsequent line. Only methods
    // that are spec'd to throw CCE and NPE should call this.
    @SuppressWarnings({"unchecked", "nullness"})
    Comparator<@Nullable Object> unsafeComparator = (Comparator<@Nullable Object>) comparator;

    new EqualsTester()
        .addEqualityGroup(new SetContainsThrows())
        .addEqualityGroup(intersection(singleton(null), singleton(null))) // NPE
        .addEqualityGroup(intersection(singleton(0), singleton(0))) // CCE
        .testEquals();
  }

  /** Returns a {@link Set} with a {@link Set#size()} of {@code size}. */
  private static ContiguousSet<Integer> setSize(int size) {
    checkArgument(size >= 0);