*
   * @since 7.0 (this version overrides the {@code ForwardingCollection} version as of 12.0)
   */
  @Override
  protected boolean standardRemoveAll(Collection<?> collection) {
    return Sets.removeAllImpl(this, checkNotNull(collection)); // for GWT
  }

  /**
   * A sensible definition of {@link #equals} in terms of {@link #size} and {@link #containsAll}. If

        @Override
        public boolean containsAll(final Collection<?> c) {
            return parent.containsAll(c);
        }

        @Override
        public boolean addAll(final Collection<? extends E> c) {
            return parent.addAll(c);
        }

        @Override
        public boolean addAll(final int index, final Collection<? extends E> c) {
            return parent.addAll(index, c);
        }

import static com.google.common.collect.testing.testers.MapPutTester.getPutNullKeyUnsupportedMethod;
import static java.util.Arrays.asList;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import junit.framework.Test;

/**
 * Tests the {@link Map} implementations of {@link java.util}, suppressing tests that trip known
 * bugs in OpenJDK 6 or higher.
 *

  /**
   * Returns an iterable whose iterator returns the given elements in order. The elements are copied
   * out of the source collection at the time this method is called.
   */
  @SuppressWarnings("unchecked") // Es come in, Es go out
  public static <E extends @Nullable Object> MinimalIterable<E> from(Collection<E> elements) {
    return (MinimalIterable) of(elements.toArray());
  }

  private @Nullable Iterator<E> iterator;

  public void testRetainAll_duplicatesKept() {
    E[] array = createSamplesArray();
    array[1] = e0();
    collection = getSubjectGenerator().create(array);
    assertFalse(
        "containsDuplicates.retainAll(superset) should return false",
        collection.retainAll(MinimalCollection.of(createSamplesArray())));
    expectContents(array);
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)

  /*
   * Previously we had a field named set that was initialized to the value of
   * collection in setUp(), but that caused problems when a tester changed the
   * value of set or collection but not both.
   */
  protected final Set<E> getSet() {
    return (Set<E>) collection;
  }

  public static ImmutableLongArray copyOf(Collection<Long> values) {
    return values.isEmpty() ? EMPTY : new ImmutableLongArray(Longs.toArray(values));
  }

  /**
   * Returns an immutable array containing the given values, in order.
   *
   * <p><b>Performance note:</b> this method delegates to {@link #copyOf(Collection)} if {@code
   * values} is a {@link Collection}. Otherwise it creates a {@link #builder} and uses {@link

                                        }
                                    }
                                } else if (Collection.class.isAssignableFrom(type)) {
                                    Collection<Object> c = (Collection<Object>) field.get(target);
                                    if (c != null && !c.isEmpty()) {

  public static Test suite() {
    return new OpenJdk6ListTests().allTests();
  }

  @Override
  protected Collection<Method> suppressForArraysAsList() {
    return asList(getToArrayIsPlainObjectArrayMethod());
  }

  @Override
  protected Collection<Method> suppressForCheckedList() {
    return asList(
        CollectionAddTester.getAddNullSupportedMethod(),
        getAddSupportedNullPresentMethod(),

    return new OpenJdk6SetTests().allTests();
  }

  @Override
  protected Collection<Method> suppressForTreeSetNatural() {
    return asList(
        getAddNullUnsupportedMethod(),
        getAddAllNullUnsupportedMethod(),
        getCreateWithNullUnsupportedMethod());
  }

  @Override
  protected Collection<Method> suppressForCheckedSet() {