factories.add(factory);
      }
    }
    if (!Modifier.isAbstract(type.getRawType().getModifiers())) {
      for (Constructor<?> constructor : type.getRawType().getDeclaredConstructors()) {
        Invokable<T, T> invokable = type.constructor(constructor);
        if (!invokable.isPrivate() && !invokable.isSynthetic()) {
          factories.add(invokable);
        }
      }
    }

  }

  /** constructor creates array of given size with all elements zero */
  public void testConstructor() {
    AtomicDoubleArray aa = new AtomicDoubleArray(SIZE);
    for (int i = 0; i < SIZE; i++) {
      assertBitEquals(0.0, aa.get(i));
    }
  }

  /** constructor with null array throws NPE */
  public void testConstructor2NPE() {
    double[] a = null;

    public final void publicFinalMethod() {}

    void notAnnotatedMethod() {}

    static Invokable<A, A> constructor() throws Exception {
      Constructor<A> constructor = A.class.getDeclaredConstructor(Object.class);
      Invokable<A, A> invokable = Invokable.from(constructor);
      assertEquals(constructor.getName(), invokable.getName());
      assertEquals(A.class, invokable.getDeclaringClass());
      return invokable;
    }

    }

    private static final long serialVersionUID = 0;
  }

  final boolean supportsFastOffset;

  /** Constructor for use by subclasses. */
  protected DiscreteDomain() {
    this(false);
  }

  /** Private constructor for built-in DiscreteDomains supporting fast offset. */
  private DiscreteDomain(boolean supportsFastOffset) {
    this.supportsFastOffset = supportsFastOffset;

    this.expectedElements = Helpers.copyToList(expectedElements);
    this.knownOrder = knownOrder;
    this.startIndex = startIndex;
  }

  /**
   * I'd like to make this a parameter to the constructor, but I can't because the stimulus
   * instances refer to {@code this}.
   */
  protected abstract Iterable<? extends Stimulus<E, ? super I>> getStimulusValues();

  /**

      return arbitraryConstantInstanceOrNull(type);
    }
    final Constructor<T> constructor;
    try {
      constructor = type.getConstructor();
    } catch (NoSuchMethodException e) {
      return arbitraryConstantInstanceOrNull(type);
    }
    constructor.setAccessible(true); // accessibility check is too slow
    try {
      return constructor.newInstance();

      return arbitraryConstantInstanceOrNull(type);
    }
    final Constructor<T> constructor;
    try {
      constructor = type.getConstructor();
    } catch (NoSuchMethodException e) {
      return arbitraryConstantInstanceOrNull(type);
    }
    constructor.setAccessible(true); // accessibility check is too slow
    try {
      return constructor.newInstance();

    this.expectedElements = Helpers.copyToList(expectedElements);
    this.knownOrder = knownOrder;
    this.startIndex = startIndex;
  }

  /**
   * I'd like to make this a parameter to the constructor, but I can't because the stimulus
   * instances refer to {@code this}.
   */
  protected abstract Iterable<? extends Stimulus<E, ? super I>> getStimulusValues();

  /**

      return "futures=" + localFutures;
    }
    return super.pendingToString();
  }

  /**
   * Must be called at the end of each subclass's constructor. This method performs the "real"
   * initialization; we can't put this in the constructor because, in the case where futures are
   * already complete, we would not initialize the subclass before calling {@link

 * @param <V> the type of mapped values used the maps under test
 * @author George van den Driessche
 */
// TODO: Descriptive assertion messages, with hints as to probable fixes.
// TODO: Add another constructor parameter indicating whether the class under test is ordered, and
// check the order if so.
// TODO: Refactor to share code with SetTestBuilder etc.
@GwtCompatible
@ElementTypesAreNonnullByDefault