// null only for TOMBSTONE
    final @Nullable Runnable task;
    // null only for TOMBSTONE
    final @Nullable Executor executor;

    // writes to next are made visible by subsequent CAS's on the listeners field
    @Nullable Listener next;

    Listener(Runnable task, Executor executor) {
      this.task = task;
      this.executor = executor;
    }

    Listener() {

            return null;
        }

        @Override
        public void saveSession(String sessionId) {
            // Do nothing in test
        }

        @Override
        public boolean visited(OpenSearchUrlQueue urlQueue) {
            return false;
        }

        @Override
        public void generateUrlQueues(String sessionId, String url) {
            // Do nothing in test
        }

     * @param packagePrefix resource path prefix inside {@code classloader} for any files found
     *     under {@code directory}
     * @param currentPath canonical files already visited in the current directory tree path, for
     *     cycle elimination
     */
    private void scanDirectory(
        File directory,
        String packagePrefix,
        Set<File> currentPath,

Event(o))},l=t=>!(!t||"object"!=typeof t)&&(void 0!==t.jquery&&(t=t[0]),void 0!==t.nodeType),c=t=>l(t)?t.jquery?t[0]:t:"string"==typeof t&&t.length>0?document.querySelector(r(t)):null,h=t=>{if(!l(t)||0===t.getClientRects().length)return!1;const e="visible"===getComputedStyle(t).getPropertyValue("visibility"),s=t.closest("details:not([open])");if(!s)return e;if(s!==t){const e=t.closest("summary");if(e&&e.parentNode!==s)return!1;if(null===e)return!1}return e},d=t=>!t||t.nodeType!==Node.ELEMENT_NODE|...

   *       directly during deserialization. However, we would lose Java's guarantees for {@code
   *       final} fields, including that their values are guaranteed to be visible even when an
   *       instance is unsafely published.
   * </ul>
   */
  private transient @Nullable ConcurrentHashMultiset<E> deserializationReplacement;

  /**

* `description`
* `deprecated`

Validaciones específicas para strings:

* `min_length`
* `max_length`
* `pattern`

Validaciones personalizadas usando `AfterValidator`.

En estos ejemplos viste cómo declarar validaciones para valores de tipo `str`.

   * {@code getUnchecked}, and threads with an odd index will call {@code get}. If the cache throws
   * exceptions, this difference may be visible in the returned List.
   */
  @SuppressWarnings("ThreadPriorityCheck") // TODO: b/175898629 - Consider onSpinWait.
  private static <K> List<Object> doConcurrentGet(

  }

  // TODO(fry): Separate logic for consistency between emul and nonemul implementation.
  // TODO(fry): Look into Maps.KeySet and Maps.Values, which can ideally be reused here but are
  // currently only package visible.
  abstract class AbstractCacheSet<T> extends AbstractSet<T> {
    final ConcurrentMap<?, ?> map;

    AbstractCacheSet(ConcurrentMap<?, ?> map) {
      this.map = map;
    }

    @Override

See https://developer.mozilla.org/en-US/docs/Web/CSS/:focus-visible\n// and https://developer.paciellogroup.com/blog/2018/03/focus-visible-and-backwards-compatibility/\n[tabindex=\"-1\"]:focus:not(:focus-visible) {\n  outline: 0 !important;\n}\n\n\n// Content grouping\n//\n// 1. Add the correct box sizing in Firefox.\n// 2. Show the overflow in Edge and IE.\n\nhr {\n  box-sizing: content-box; // 1\n  height: 0; // 1\n  overflow: visible; // 2\n}\n\n\n//\n// Typography\n//\n\n// Remove top margins...

    }

    @Override
    public List<Long> subList(int fromIndex, int toIndex) {
      return parent.subArray(fromIndex, toIndex).asList();
    }

    /*
     * This is an override that is not directly visible to callers, so NewApi will catch calls to
     * Collection.spliterator() where necessary.
     */
    @IgnoreJRERequirement
    @Override
    public Spliterator.OfLong spliterator() {