@GwtCompatible
final class UsingToStringOrdering extends Ordering<Object> implements Serializable {
  static final UsingToStringOrdering INSTANCE = new UsingToStringOrdering();

  @Override
  public int compare(Object left, Object right) {
    return left.toString().compareTo(right.toString());
  }

  // preserve singleton-ness, so equals() and hashCode() work correctly
  private Object readResolve() {
    return INSTANCE;
  }

  @Override

 *     seqNum = seq.getAndIncrement();
 *     this.entry = entry;
 *   }
 *
 *   public E getEntry() {
 *     return entry;
 *   }
 *
 *   public int compareTo(FIFOEntry<E> other) {
 *     int res = entry.compareTo(other.entry);
 *     if (res == 0 && other.entry != this.entry) {
 *       res = (seqNum < other.seqNum ? -1 : 1);
 *     }
 *     return res;
 *   }
 * }
 * }</pre>
 *

@GwtCompatible
@NullMarked
public class TreeMultimapExplicitTest extends TestCase {

  /**
   * Compare strings lengths, and if the lengths are equal compare the strings. A {@code null} is
   * less than any non-null value.
   */
  private enum StringLength implements Comparator<@Nullable String> {
    COMPARATOR;

    @Override
    public int compare(@Nullable String first, @Nullable String second) {
      if (first == second) {
        return 0;

  @SuppressWarnings("unchecked")
  private static final Comparator<Object> NATURAL_ORDER =
      new Comparator<Object>() {
        @Override
        public int compare(Object o1, Object o2) {
          return ((Comparable<Object>) o1).compareTo(o2);
        }
      };

  private final NavigableMap<K, V> delegate;

  public SafeTreeMap() {
    this(new TreeMap<K, V>());
  }

Harshavardhana <******@****.***> 1699046298 -0700

  @SuppressWarnings("unchecked")
  private static final Comparator<Object> NATURAL_ORDER =
      new Comparator<Object>() {
        @Override
        public int compare(Object o1, Object o2) {
          return ((Comparable<Object>) o1).compareTo(o2);
        }
      };

  private final NavigableSet<E> delegate;

  public SafeTreeSet() {
    this(new TreeSet<E>());
  }

  @Override
  public int compareTo(Cut<C> that) {
    if (that == belowAll()) {
      return 1;
    }
    if (that == aboveAll()) {
      return -1;
    }
    int result = Range.compareOrThrow(endpoint, that.endpoint);
    if (result != 0) {
      return result;
    }
    // same value. below comes before above
    return Boolean.compare(this instanceof AboveValue, that instanceof AboveValue);
  }

  @Override
  @SuppressWarnings("unchecked") // TODO(kevinb): the right way to explain this??
  public int compare(Comparable<?> left, Comparable<?> right) {
    checkNotNull(left); // for GWT
    checkNotNull(right);
    return ((Comparable<Object>) left).compareTo(right);
  }

  @Override
  @SuppressWarnings("unchecked") // TODO(kevinb): the right way to explain this??

    BigInteger maxDoubleValue = BigDecimal.valueOf(Double.MAX_VALUE).toBigInteger();
    assertTrue(BigIntegerMath.factorial(DoubleMath.MAX_FACTORIAL).compareTo(maxDoubleValue) <= 0);
    assertTrue(
        BigIntegerMath.factorial(DoubleMath.MAX_FACTORIAL + 1).compareTo(maxDoubleValue) > 0);
  }

  public void testConstantsEverySixteenthFactorial() {
    for (int i = 0, n = 0; n <= DoubleMath.MAX_FACTORIAL; i++, n += 16) {

  public void testGet_comparable() {
    @SuppressWarnings("unchecked") // The null value can compare with any Object
    Comparable<Object> comparable = ArbitraryInstances.get(Comparable.class);
    assertEquals(0, comparable.compareTo(comparable));
    assertTrue(comparable.compareTo("") > 0);
    assertThrows(NullPointerException.class, () -> comparable.compareTo(null));
  }

  public void testGet_array() {