* This implementation passes the navigable map test suites.
 *
 * @author Louis Wasserman
 */
@GwtIncompatible
public final class SafeTreeMap<K, V> implements Serializable, NavigableMap<K, V> {
  @SuppressWarnings("unchecked")
  private static final Comparator<Object> NATURAL_ORDER =
      new Comparator<Object>() {
        @Override
        public int compare(Object o1, Object o2) {

        Runnable.class,
        new Function<Runnable, Runnable>() {
          @Override
          public Runnable apply(Runnable runnable) {
            return new ForwardingRunnable(runnable) {

              @SuppressWarnings("EqualsHashCode")
              @Override
              public boolean equals(@Nullable Object o) {
                if (o instanceof ForwardingRunnable) {

    for (E e : iterable) {
      list.add(e);
    }
    return list;
  }

  @SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
  public static <K extends Comparable, V extends @Nullable Object>
      Iterable<Entry<K, V>> orderEntriesByKey(List<Entry<K, V>> insertionOrder) {
    @SuppressWarnings("unchecked") // assume any Comparable is Comparable<Self>

    setHashTableMask(buckets - 1);

    this.entries = new int[expectedSize];
    this.elements = new Object[expectedSize];

    return expectedSize;
  }

  @SuppressWarnings("unchecked")
  @VisibleForTesting
  @Nullable Set<E> delegateOrNull() {
    if (table instanceof Set) {
      return (Set<E>) table;
    }
    return null;
  }

    }
  }

  /**
   * 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() {

                          public Integer apply(String input) {
                            return input.length();
                          }
                        });
                  }

                  @SuppressWarnings("unchecked")
                  @Override
                  public Entry<String, Integer>[] createArray(int length) {
                    return (Entry<String, Integer>[]) new Entry<?, ?>[length];
                  }

 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
@NullMarked
public abstract class AbstractMapTester<K extends @Nullable Object, V extends @Nullable Object>
    extends AbstractContainerTester<Map<K, V>, Entry<K, V>> {

    /**
     *
     */
    @Test
    public void test() {
        final List<String> list1 = asList("Foo", "Bar");
        final List<String> list2 = asList("Baz");

        @SuppressWarnings("unchecked")
        final Iterator<String> it = new MultiIterator<String>(list1.iterator(), list2.iterator());

        assertThat(it.hasNext(), is(true));
        assertThat(it.next(), is("Foo"));

import java.lang.annotation.RetentionPolicy;
import java.util.Set;

/**
 * Optional features of classes derived from {@code Set}.
 *
 * @author George van den Driessche
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible
public enum SetFeature implements Feature<Set> {
  GENERAL_PURPOSE(CollectionFeature.GENERAL_PURPOSE);

 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class MultisetContainsTester<E> extends AbstractMultisetTester<E> {
  @CollectionSize.Require(absent = ZERO)
  public void testContainsAllMultisetIgnoresFrequency() {