* byte ordering for the individual components.
 */
public class HandleGuid implements Serializable {

    private static final long serialVersionUID = 1L;

    /**
     * The underlying UUID representing this handle GUID
     */
    private final UUID guid;

    /**
     * Create a new random handle GUID
     */
    public HandleGuid() {
        this.guid = UUID.randomUUID();
    }

 * java -Dfess.crawler.http.client=hc5 ...
 * // or simply
 * java ...
 * }
 * </pre>
 *
 * @author shinsuke
 */
public class SwitchableHttpClient extends FaultTolerantClient {

    private static final Logger logger = LogManager.getLogger(SwitchableHttpClient.class);

    /** System property name to select HTTP client implementation. */
    public static final String HTTP_CLIENT_PROPERTY = "fess.crawler.http.client";

 *
 * @author Charles Fry
 * @since 11.0
 */
@GwtCompatible
public final class AtomicLongMap<K> implements Serializable {
  private final ConcurrentHashMap<K, AtomicLong> map;

  private AtomicLongMap(ConcurrentHashMap<K, AtomicLong> map) {
    this.map = checkNotNull(map);
  }

  /** Creates an {@code AtomicLongMap}. */
  public static <K> AtomicLongMap<K> create() {

 */
@J2ktIncompatible
@GwtIncompatible
public final class ExecutionSequencer {

  private ExecutionSequencer() {}

  /** Creates a new instance. */
  public static ExecutionSequencer create() {
    return new ExecutionSequencer();
  }

  /** This reference acts as a pointer tracking the head of a linked list of ListenableFutures. */
  private final AtomicReference<ListenableFuture<@Nullable Void>> ref =

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
@NullMarked
public class MapPutAllTester<K extends @Nullable Object, V extends @Nullable Object>
    extends AbstractMapTester<K, V> {
  private List<Entry<K, V>> containsNullKey;
  private List<Entry<K, V>> containsNullValue;

  @Override
  public void setUp() throws Exception {
    super.setUp();
    containsNullKey = singletonList(entry(null, v3()));

        val gradleVersion: Property<String>
        val homeDir: DirectoryProperty
    }

    @get:Inject
    abstract val fileSystemOperations: FileSystemOperations

    private
    var hasCleaned = false

    val logger = Logging.getLogger(CachesCleaner::class.java)

    fun cleanUpCaches() {
        synchronized(this) {
            if (hasCleaned) {
                return

  SEVERAL(3),
  /*
   * TODO: add VERY_LARGE, noting that we currently assume that the fourth
   * sample element is not in any collection
   */

  ANY(ZERO, ONE, SEVERAL);

  private final Set<Feature<? super Collection>> implied;
  private final @Nullable Integer numElements;

  CollectionSize(int numElements) {
    this.implied = emptySet();
    this.numElements = numElements;
  }

        }
      }
    },
    RANDOM {
      @Override
      void arrange(List<Integer> list) {}
    };

    abstract void arrange(List<Integer> list);
  }

  private ImmutableList<Integer> input;

  @BeforeExperiment
  void setUp() {
    checkArgument(size > 0, "empty collection not supported");
    Set<Integer> set = new LinkedHashSet<>(size);

    Random random = new Random();

  SEVERAL(3),
  /*
   * TODO: add VERY_LARGE, noting that we currently assume that the fourth
   * sample element is not in any collection
   */

  ANY(ZERO, ONE, SEVERAL);

  private final Set<Feature<? super Collection>> implied;
  private final @Nullable Integer numElements;

  CollectionSize(int numElements) {
    this.implied = emptySet();
    this.numElements = numElements;
  }

  public static <E extends @Nullable Object> MinimalIterable<E> from(Collection<E> elements) {
    return (MinimalIterable) of(elements.toArray());
  }

  private @Nullable Iterator<E> iterator;

  private MinimalIterable(Iterator<E> iterator) {
    this.iterator = iterator;
  }

  @Override
  public Iterator<E> iterator() {
    if (iterator == null) {