@NullMarked
public class OrderingTest extends TestCase {
  // TODO(cpovirk): some of these are inexplicably slow (20-30s) under GWT

  private final Ordering<Number> numberOrdering = new NumberOrdering();

  public void testAllEqual() {
    Ordering<@Nullable Object> comparator = Ordering.allEqual();
    assertSame(comparator, comparator.reverse());

    assertEquals(0, comparator.compare(null, null));

@NullMarked
public class OrderingTest extends TestCase {
  // TODO(cpovirk): some of these are inexplicably slow (20-30s) under GWT

  private final Ordering<Number> numberOrdering = new NumberOrdering();

  public void testAllEqual() {
    Ordering<@Nullable Object> comparator = Ordering.allEqual();
    assertSame(comparator, comparator.reverse());

    assertEquals(0, comparator.compare(null, null));