if (!throwIfDuplicateKeys) {
          // We want to retain only the last-put value for any given key, before sorting.
          // This could be improved, but orderEntriesByValue is rather rarely used anyway.
          localAlternatingKeysAndValues = lastEntryForEachKey(localAlternatingKeysAndValues, size);
          if (localAlternatingKeysAndValues.length < alternatingKeysAndValues.length) {

 * #setFuture(ListenableFuture)} and {@link #setException(Throwable)}. Subclasses may also override
 * {@link #afterDone()}, which will be invoked automatically when the future completes. Subclasses
 * should rarely override other methods.
 *
 * @author Sven Mawson
 * @author Luke Sandberg
 * @since 1.0
 */
@SuppressWarnings({
  "ShortCircuitBoolean", // we use non-short circuiting comparisons intentionally

   * SuppressWarnings("unchecked")
   * Set<String> badStrings = (Set) Sets.intersection(
   *     aFewBadObjects, manyBadStrings);
   * }</pre>
   *
   * <p>This is unfortunate, but should come up only very rarely.
   */
  public static <E extends @Nullable Object> SetView<E> intersection(
      final Set<E> set1, final Set<?> set2) {
    checkNotNull(set1, "set1");
    checkNotNull(set2, "set2");

    /*
     * Note that technically the returned ordering should be capable of
     * handling not just {@code Iterable<S>} instances, but also any {@code
     * Iterable<? extends S>}. However, the need for this comes up so rarely
     * that it doesn't justify making everyone else deal with the very ugly
     * wildcard.
     */
    return new LexicographicalOrdering<S>(this);
  }

  // Regular instance methods

  @Override

  public static final String CROSS_ORIGIN_RESOURCE_POLICY = "Cross-Origin-Resource-Policy";
  /**
   * The HTTP <a href="https://tools.ietf.org/html/rfc8470">{@code Early-Data}</a> header field
   * name.
   *
   * @since 27.0
   */
  public static final String EARLY_DATA = "Early-Data";
  /** The HTTP {@code Expect} header field name. */
  public static final String EXPECT = "Expect";
  /** The HTTP {@code From} header field name. */