getList().equals(other));
  }

  @CollectionSize.Require(absent = CollectionSize.ZERO)
  public void testEquals_otherListContainingNull() {
    List<E> other = new ArrayList<>(getSampleElements());
    other.set(other.size() / 2, null);
    assertFalse(
        "Two Lists should not be equal if exactly one of them has null at a given index.",
        getList().equals(other));
  }

/**
 * Returns an array containing only elements found in this array and also in [other]. The returned
 * elements are in the same order as in this.
 */
internal fun Array<String>.intersect(
  other: Array<String>,
  comparator: Comparator<in String>,
): Array<String> {
  val result = mutableListOf<String>()
  for (a in this) {
    for (b in other) {
      if (comparator.compare(a, b) == 0) {
        result.add(a)
        break

    }

    /**
     * Returns <code>true</code> if the class loader <code>other</code> is an ancestor of the class loader <code>cl</code>.
     *
     * @param cl
     *            the class loader
     * @param other
     *            the class loader to check as ancestor
     * @return <code>true</code> if <code>other</code> is an ancestor of <code>cl</code>
     */

   */
  public CacheStats plus(CacheStats other) {
    return new CacheStats(
        saturatedAdd(hitCount, other.hitCount),
        saturatedAdd(missCount, other.missCount),
        saturatedAdd(loadSuccessCount, other.loadSuccessCount),
        saturatedAdd(loadExceptionCount, other.loadExceptionCount),
        saturatedAdd(totalLoadTime, other.totalLoadTime),
        saturatedAdd(evictionCount, other.evictionCount));
  }

  @Override

	}
}

// merge other data usage entry into this, excluding children.
func (e *dataUsageEntry) merge(other dataUsageEntry) {
	e.Objects += other.Objects
	e.Versions += other.Versions
	e.DeleteMarkers += other.DeleteMarkers
	e.Size += other.Size

	for i, v := range other.ObjSizes[:] {
		e.ObjSizes[i] += v
	}

	for i, v := range other.ObjVersions[:] {
		e.ObjVersions[i] += v
	}

        final Tuple5<T1, T2, T3, T4, T5> other = (Tuple5<T1, T2, T3, T4, T5>) obj;
        if (value1 == null) {
            if (other.value1 != null) {
                return false;
            }
        } else if (!value1.equals(other.value1)) {
            return false;
        }
        if (value2 == null) {
            if (other.value2 != null) {
                return false;
            }

     copyright--then that use is not regulated by the license. Our
     licenses grant only permissions under copyright and certain
     other rights that a licensor has authority to grant. Use of
     the licensed material may still be restricted for other
     reasons, including because others have copyright or other
     rights in the material. A licensor may make special requests,
     such as asking that all changes be marked or described.

        @SuppressWarnings("unchecked")
        final Tuple4<T1, T2, T3, T4> other = (Tuple4<T1, T2, T3, T4>) obj;
        if (value1 == null) {
            if (other.value1 != null) {
                return false;
            }
        } else if (!value1.equals(other.value1)) {
            return false;
        }
        if (value2 == null) {
            if (other.value2 != null) {
                return false;
            }

        getList().equals(other));
  }

  @CollectionSize.Require(absent = CollectionSize.ZERO)
  public void testEquals_otherListContainingNull() {
    List<E> other = new ArrayList<>(getSampleElements());
    other.set(other.size() / 2, null);
    assertFalse(
        "Two Lists should not be equal if exactly one of them has null at a given index.",
        getList().equals(other));
  }

It used custom types in its declarations instead of standard Python types, but it was still a huge step forward.

It also was one of the first frameworks to generate a custom schema declaring the whole API in JSON.