assertTrue(multiset.contains("a"));
  }

  private static class NoRemoveMultiset<E extends @Nullable Object> extends AbstractMultiset<E>
      implements Serializable {
    final Map<E, Integer> backingMap = new HashMap<>();

    @Override
    public int size() {
      return Multisets.linearTimeSizeImpl(this);
    }

    @Override
    public void clear() {

 * writeReplace} when serializing an instance of the subclass. For an example of this problem, see
 * b/310253115.
 */
@NullUnmarked
public class WriteReplaceOverridesTest extends TestCase {
  private static final ImmutableSet<String> GUAVA_PACKAGES =
      FluentIterable.of(
              "base",
              "cache",
              "collect",
              "escape",
              "eventbus",
              "graph",

      Iterable<E> expectedElements,
      KnownOrder knownOrder) {
    super(steps, Collections.<E>singleton(null), features, expectedElements, knownOrder, 0);
  }

  @Override
  protected final Iterable<Stimulus<E, Iterator<E>>> getStimulusValues() {
    return iteratorStimuli();
  }

 *
 * Tests the SMB URL handler implementation including:
 * - Default port configuration
 * - URL connection opening
 * - URL creation and parsing
 */
public class HandlerTest {

    private final Handler handler = new Handler();

    @BeforeAll
    static void setupProtocolHandler() {
        // Register the SMB protocol handler
        String pkgs = System.getProperty("java.protocol.handler.pkgs");

  SUBSET_VIEW,
  DESCENDING_VIEW,

  /**
   * For documenting collections that support no optional features, such as {@link
   * java.util.Collections#emptySet}
   */
  NONE;

  private final Set<Feature<? super Collection>> implied;

  CollectionFeature(Feature<? super Collection>... implied) {
    this.implied = copyToSet(implied);
  }

  @Override

 *
 * @author Robert Konigsberg
 * @author Louis Wasserman
 */
@NullUnmarked
public class ForwardingSetTest extends TestCase {
  static class StandardImplForwardingSet<T> extends ForwardingSet<T> {
    private final Set<T> backingSet;

    StandardImplForwardingSet(Set<T> backingSet) {
      this.backingSet = backingSet;
    }

    @Override
    protected Set<T> delegate() {
      return backingSet;
    }

    suite.addTest(testsForTransform());
    suite.addTestSuite(Collections2Test.class);
    return suite;
  }

  static final Predicate<@Nullable String> NOT_YYY_ZZZ =
      input -> !Objects.equals(input, "yyy") && !Objects.equals(input, "zzz");

  static final Predicate<String> LENGTH_1 = input -> input.length() == 1;

  @J2ktIncompatible
  @GwtIncompatible // suite
  @AndroidIncompatible // test-suite builders

class NegotiateContextRequestTest {

    @Mock
    private Configuration mockConfig;

    private static final int BUFFER_SIZE = 1024;

    /**
     * Test custom implementation of NegotiateContextRequest for interface testing
     */
    static class TestNegotiateContextRequest implements NegotiateContextRequest {
        private final int contextType;

        TestNegotiateContextRequest(int contextType) {

   *
   * <p>Because the set may be ascending or descending, this test must derive the relative order of
   * these extreme values rather than relying on their regular sort ordering.
   */
  final TestSuite createSubsetSuite(
      FeatureSpecificTestSuiteBuilder<?, ? extends OneSizeTestContainerGenerator<Collection<E>, E>>
          parentBuilder,
      Bound from,
      Bound to) {

   *
   * <p>Because the set may be ascending or descending, this test must derive the relative order of
   * these extreme values rather than relying on their regular sort ordering.
   */
  final TestSuite createSubsetSuite(
      FeatureSpecificTestSuiteBuilder<?, ? extends OneSizeTestContainerGenerator<Collection<E>, E>>
          parentBuilder,
      Bound from,
      Bound to) {