}
        return pattern.matcher(userCode).matches();
    }

    String getQueryCollapseInnerHitsSorts();

    @SuppressWarnings("rawtypes")
    default OptionalThing<SortBuilder[]> getQueryCollapseInnerHitsSortBuilders() {
        @SuppressWarnings("unchecked")
        OptionalThing<SortBuilder[]> ot = (OptionalThing<SortBuilder[]>) propMap.get(QUERY_COLLAPSE_INNER_HITS_SORTS);
        if (ot == null) {

  @Nullable Strength keyStrength;
  @Nullable Strength valueStrength;

  @SuppressWarnings("GoodTime") // should be a Duration
  long expireAfterWriteNanos = UNSET_INT;

  @SuppressWarnings("GoodTime") // should be a Duration
  long expireAfterAccessNanos = UNSET_INT;

  @SuppressWarnings("GoodTime") // should be a Duration
  long refreshNanos = UNSET_INT;

   * href="https://docs.oracle.com/javase/tutorial/java/generics/genTypeInference.html#type-inference-instantiation">"diamond"
   * syntax</a>.
   */
  @SuppressWarnings("NonApiType") // acts as a direct substitute for a constructor call
  public static <E extends @Nullable Object> HashSet<E> newHashSet() {
    return new HashSet<>();
  }

  /**

 * @author Mike Bostock
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
@SuppressWarnings("JUnitIncompatibleType") // Many intentional violations here.
public class MapsTest extends TestCase {

  private static final Comparator<Integer> SOME_COMPARATOR = Collections.reverseOrder();

  public void testHashMap() {
    @SuppressWarnings("UseCollectionConstructor") // test of factory method

  }

  public void testAssignableParameterizedTypeToClass() {
    @SuppressWarnings("rawtypes") // Trying to test raw class
    TypeToken<List> tokL = new TypeToken<List>() {};
    assertTrue(tokL.isSupertypeOf(StringList.class));
    assertTrue(tokL.isSupertypeOf(StringList.class.getGenericInterfaces()[0]));

    @SuppressWarnings("rawtypes") // Trying to test raw class
    TypeToken<Second> tokS = new TypeToken<Second>() {};

    }

    @SuppressWarnings("unchecked")
    ImmutableList<ListenableFuture<T>> delegatesCast = (ImmutableList) delegates;
    return delegatesCast;
  }

  /** Can't use Iterables.toArray because it's not gwt compatible */
  @SuppressWarnings("unchecked")
  private static <T extends @Nullable Object> ListenableFuture<? extends T>[] gwtCompatibleToArray(

  @Nullable Strength keyStrength;
  @Nullable Strength valueStrength;

  @SuppressWarnings("GoodTime") // should be a Duration
  long expireAfterWriteNanos = UNSET_INT;

  @SuppressWarnings("GoodTime") // should be a Duration
  long expireAfterAccessNanos = UNSET_INT;

  @SuppressWarnings("GoodTime") // should be a Duration
  long refreshNanos = UNSET_INT;

 * @author Bob Lee
 * @author Charles Fry
 * @author Doug Lea ({@code ConcurrentHashMap})
 */
// TODO(kak): Consider removing @CanIgnoreReturnValue from this class.
@J2ktIncompatible
@GwtIncompatible
@SuppressWarnings({
  "GuardedBy", // TODO(b/35466881): Fix or suppress.
  "nullness", // too much trouble for the payoff
})
@NullUnmarked // TODO(cpovirk): Annotate for nullness.
final class MapMakerInternalMap<
        K,

    }
  }

  /**
   * Returns the empty sorted map.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked")
  // unsafe, comparator() returns a comparator on the specified type
  // TODO(kevinb): evaluate whether or not of().comparator() should return null
  public static <K, V> ImmutableSortedMap<K, V> of() {

      implements Collection<E> {
    private SynchronizedCollection(Collection<E> delegate, @Nullable Object mutex) {
      super(delegate, mutex);
    }

    @SuppressWarnings("unchecked")
    @Override
    Collection<E> delegate() {
      return (Collection<E>) super.delegate();
    }

    @Override
    public boolean add(E e) {
      synchronized (mutex) {