CountingRemovalListener<Object, Object> listener = countingRemovalListener();
    LoadingCache<Object, Object> nullCache =
        CacheBuilder.newBuilder().maximumSize(0).removalListener(listener).build(identityLoader());
    assertEquals(0, nullCache.size());
    Object key = new Object();
    assertSame(key, nullCache.getUnchecked(key));
    assertEquals(1, listener.getCount());
    assertEquals(0, nullCache.size());

  enum ConstructionPathway implements Construction<Set<Object>> {
    OF {
      @Override
      public ImmutableSet<Object> create(List<?> list) {
        Object o1 = list.get(0);
        Object o2 = list.get(1);
        Object o3 = list.get(2);
        Object o4 = list.get(3);
        Object o5 = list.get(4);
        Object o6 = list.get(5);
        Object[] rest = list.subList(6, list.size()).toArray();

    if (length == 0) {
      return new Object[0];
    }
    @Nullable Object[] result = new Object[length];
    System.arraycopy(elements, offset, result, 0, length);
    return result;
  }

  @CanIgnoreReturnValue
  private static @Nullable Object[] fillArray(Iterable<?> elements, @Nullable Object[] array) {
    int i = 0;
    for (Object element : elements) {
      array[i++] = element;
    }

  }

  /**
   * A sensible definition of {@link #subSet(Object, Object)} in terms of the {@link #subSet(Object,
   * boolean, Object, boolean)} method. If you override {@link #subSet(Object, boolean, Object,
   * boolean)}, you may wish to override {@link #subSet(Object, Object)} to forward to this
   * implementation.
   */
  @Override
  protected SortedSet<E> standardSubSet(

   */

  public static List<BlockingQueue<Object>> blockingQueues() {
    return ImmutableList.<BlockingQueue<Object>>of(
        new LinkedBlockingQueue<Object>(),
        new LinkedBlockingQueue<Object>(10),
        new SynchronousQueue<Object>(),
        new ArrayBlockingQueue<Object>(10),
        new LinkedBlockingDeque<Object>(),
        new LinkedBlockingDeque<Object>(10),

 * test with reference to the same "lock-like object", and then their interactions with that object
 * are choreographed via the various methods on this class.
 *
 * <p>A "lock-like object" is really any object that may be used for concurrency control. If the
 * {@link #callAndAssertBlocks} method is ever called in a test, the lock-like object must have a

   */
  public static <A extends @Nullable Object, B extends @Nullable Object, C extends @Nullable Object>
      Function<A, C> compose(Function<B, C> g, Function<A, ? extends B> f) {
    return new FunctionComposition<>(g, f);
  }

  private static class FunctionComposition<
          A extends @Nullable Object, B extends @Nullable Object, C extends @Nullable Object>
      implements Function<A, C>, Serializable {

            refreshes,
            keyStrengths,
            valueStrengths);
    return Iterables.transform(
        combinations,
        new Function<List<Object>, CacheBuilder<Object, Object>>() {
          @Override
          public CacheBuilder<Object, Object> apply(List<Object> combination) {
            return createCacheBuilder(
                (Integer) combination.get(0),
                (Integer) combination.get(1),

@ElementTypesAreNonnullByDefault
public class MinimalSet<E extends @Nullable Object> extends MinimalCollection<E> implements Set<E> {

  @SuppressWarnings("unchecked") // empty Object[] as E[]
  public static <E extends @Nullable Object> MinimalSet<E> of(E... contents) {
    return ofClassAndContents(Object.class, (E[]) new Object[0], Arrays.asList(contents));
  }

  @SuppressWarnings("unchecked") // empty Object[] as E[]

@ElementTypesAreNonnullByDefault
public class MinimalSet<E extends @Nullable Object> extends MinimalCollection<E> implements Set<E> {

  @SuppressWarnings("unchecked") // empty Object[] as E[]
  public static <E extends @Nullable Object> MinimalSet<E> of(E... contents) {
    return ofClassAndContents(Object.class, (E[]) new Object[0], Arrays.asList(contents));
  }

  @SuppressWarnings("unchecked") // empty Object[] as E[]