+ "a null element counting as having a hash of zero).",
        expectedHashCode,
        getSet().hashCode());
  }

  /**
   * Returns the {@link Method} instances for the test methods in this class which call {@code
   * hashCode()} on the set values so that set tests on unhashable objects can suppress it with
   * {@code FeatureSpecificTestSuiteBuilder.suppressing()}.
   */

/**
 * Resident invoker implementation, specialization of Maven Invoker, but keeps Maven instance resident. This implies, that
 * things like environment, system properties, extensions etc. are loaded only once. It is caller duty to ensure
 * that subsequent call is right for the resident instance (ie no env change or different extension needed).

  }

  private static final class EmptySetBuilderImpl<E> extends SetBuilderImpl<E> {
    private static final EmptySetBuilderImpl<Object> INSTANCE = new EmptySetBuilderImpl<>();

    @SuppressWarnings("unchecked")
    static <E> SetBuilderImpl<E> instance() {
      return (SetBuilderImpl<E>) INSTANCE;
    }

    private EmptySetBuilderImpl() {
      super(0);
    }

    @Override
    SetBuilderImpl<E> add(E e) {

   */
  public static Function<Object, String> toStringFunction() {
    return ToStringFunction.INSTANCE;
  }

  // enum singleton pattern
  private enum ToStringFunction implements Function<Object, String> {
    INSTANCE;

    @Override
    public String apply(Object o) {
      checkNotNull(o); // eager for GWT.
      return o.toString();
    }

    @Override

  image: quay.io/minio/minio:${RELEASE}
  command: server http://site2-minio{1...4}/data{1...2}
  environment:
    - MINIO_PROMETHEUS_AUTH_TYPE=public
    - CI=true

# starts 4 docker containers running minio server instances.
# using nginx reverse proxy, load balancing, you can access
# it through port 9000.
services:
  site2-minio1:
    <<: *minio-common
    hostname: site2-minio1
    volumes:
      - site2-data1-1:/data1

## Our Responsibilities

Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.

        // do nothing
    }

    /**
     * Invoked after MavenSession instance has been created.
     *
     * This callback is intended to allow extensions to inject execution properties,
     * activate profiles and perform similar tasks that affect MavenProject
     * instance construction.
     *
     * @param session the Maven session
     * @throws MavenExecutionException in case of issue

   * java.io.Serializable} instance, and is thus declared an {@code Object}. For example, it might
   * be declared as a {@code List}.
   *
   * <p>Note also that serialization is not in general required to return an object that is
   * {@linkplain Object#equals equal} to the original, nor is it required to return even an object
   * of the same class. For example, if sublists of {@code MyList} instances were serializable,

      this.forward = original;
      this.backward = original.inverse();
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  /**
   * Returns {@link Method} instances for the tests that assume that the inverse will be the same
   * after serialization.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static List<Method> getInverseSameAfterSerializingMethods() {

      Class<T> interfaceType, Function<? super T, ? extends T> wrapperFunction) {
    FreshValueGenerator generator = new FreshValueGenerator();
    T instance = generator.newFreshProxy(interfaceType);
    new EqualsTester()
        .addEqualityGroup(wrapperFunction.apply(instance), wrapperFunction.apply(instance))
        .addEqualityGroup(wrapperFunction.apply(generator.newFreshProxy(interfaceType)))