implements StrongValueEntry<K, V, StrongKeyStrongValueEntry<K, V>> {
    private volatile @Nullable V value = null;

    private StrongKeyStrongValueEntry(K key, int hash) {
      super(key, hash);
    }

    @Override
    public final @Nullable V getValue() {
      return value;
    }

    private static final class LinkedStrongKeyStrongValueEntry<K, V>

  @SuppressWarnings("unchecked")
  private static final Comparator<Object> NATURAL_ORDER =
      new Comparator<Object>() {
        @Override
        public int compare(Object o1, Object o2) {
          return ((Comparable<Object>) o1).compareTo(o2);
        }
      };

  private final NavigableMap<K, V> delegate;

  public SafeTreeMap() {
    this(new TreeMap<K, V>());

 * </ul>
 *
 * @author Jim McMaster
 * @author Jige Yu
 * @since 10.0
 */
@GwtCompatible
@NullMarked
public final class EqualsTester {
  private static final int REPETITIONS = 3;

  private final List<List<Object>> equalityGroups = new ArrayList<>();
  private final RelationshipTester.ItemReporter itemReporter;

  /** Constructs an empty EqualsTester instance */
  public EqualsTester() {

 *
 * @author James Sexton
 * @since 20.0
 */
@Beta
@Immutable(containerOf = {"N"})
public abstract class EndpointPair<N> implements Iterable<N> {
  private final N nodeU;
  private final N nodeV;

  private EndpointPair(N nodeU, N nodeV) {
    this.nodeU = checkNotNull(nodeU);
    this.nodeV = checkNotNull(nodeV);
  }

public class StatsAccumulatorTest extends TestCase {

  private StatsAccumulator emptyAccumulator;
  private StatsAccumulator emptyAccumulatorByAddAllEmptyIterable;
  private StatsAccumulator emptyAccumulatorByAddAllEmptyStats;
  private StatsAccumulator oneValueAccumulator;
  private StatsAccumulator oneValueAccumulatorByAddAllEmptyStats;
  private StatsAccumulator twoValuesAccumulator;
  private StatsAccumulator twoValuesAccumulatorByAddAllStats;

   * JdkBackedSetBuilderImpl.
   */
  private static final class RegularSetBuilderImpl<E> extends SetBuilderImpl<E> {
    // null until at least two elements are present
    private @Nullable Object @Nullable [] hashTable;
    private int maxRunBeforeFallback;
    private int expandTableThreshold;
    private int hashCode;

    RegularSetBuilderImpl(int expectedCapacity) {

  private static class BadLengthFile extends File {

    private final long badLength;

    BadLengthFile(File delegate, long badLength) {
      super(delegate.getPath());
      this.badLength = badLength;
    }

    @Override
    public long length() {
      return badLength;
    }

    private static final long serialVersionUID = 0;
  }

    public WithExceptionalConstructor() {
      throw new RuntimeException();
    }

    private WithExceptionalConstructor(String unused) {}
  }

  private static class WithPublicConstant {
    @Keep public static final WithPublicConstant INSTANCE = new WithPublicConstant();
  }

  private static class ParentClassHasConstant extends WithPublicConstant {}

  public static class WithGenericConstant<T> {

import java.lang.reflect.Method;

/**
 * Context for an exception thrown by a subscriber.
 *
 * @since 16.0
 */
public class SubscriberExceptionContext {
  private final EventBus eventBus;
  private final Object event;
  private final Object subscriber;
  private final Method subscriberMethod;

  /**
   * @param eventBus The {@link EventBus} that handled the event and the subscriber. Useful for

 * @author Darick Tong
 */
@NullUnmarked
public class CycleDetectingLockFactoryBenchmark {

  @Param({"2", "3", "4", "5", "10"})
  int lockNestingDepth;

  CycleDetectingLockFactory factory;
  private Lock[] plainLocks;
  private Lock[] detectingLocks;

  @BeforeExperiment
  void setUp() throws Exception {
    this.factory = CycleDetectingLockFactory.newInstance(CycleDetectingLockFactory.Policies.WARN);