activityHelper.useEcsFormat = true;
        activityHelper.login(OptionalThing.empty());
        assertEquals(
                "{\"@timestamp\":\"2022-01-01T00:00:00.000Z\",\"log.level\":\"INFO\",\"ecs.version\":\"1.2.0\",\"service.name\":\"fess\",\"event.dataset\":\"app\",\"process.thread.name\":\"main\",\"log.logger\":\"org.codelibs.fess.helper.ActivityHelperTest$1\",\"labels.action\":\"LOGIN\",\"labels.user\":\"-\",\"labels.permissions\":\"-\"}",

- [CHANGELOG-1.24.md](./CHANGELOG-1.24.md)
- [CHANGELOG-1.23.md](./CHANGELOG-1.23.md)
- [CHANGELOG-1.22.md](./CHANGELOG-1.22.md)
- [CHANGELOG-1.21.md](./CHANGELOG-1.21.md)
- [CHANGELOG-1.20.md](./CHANGELOG-1.20.md)
- [CHANGELOG-1.19.md](./CHANGELOG-1.19.md)
- [CHANGELOG-1.18.md](./CHANGELOG-1.18.md)
- [CHANGELOG-1.17.md](./CHANGELOG-1.17.md)
- [CHANGELOG-1.16.md](./CHANGELOG-1.16.md)

  /**
   * Creates an empty {@code ArrayDeque}.
   *
   * @since 12.0
   */
  public static <E> ArrayDeque<E> newArrayDeque() {
    return new ArrayDeque<>();
  }

  /**
   * Creates an {@code ArrayDeque} containing the elements of the specified iterable, in the order
   * they are returned by the iterable's iterator.
   *
   * @since 12.0
   */

  abstract ImmutableSortedSet<E> tailSetImpl(E fromElement, boolean inclusive);

  /**
   * @since 12.0
   */
  @GwtIncompatible // NavigableSet
  @Override
  public @Nullable E lower(E e) {
    return Iterators.<@Nullable E>getNext(headSet(e, false).descendingIterator(), null);
  }

  /**
   * @since 12.0
   */
  @Override
  public @Nullable E floor(E e) {

 *
 * <p>The {@code standard} methods and the collection views they return are not guaranteed to be
 * thread-safe, even when all of the methods that they depend on are thread-safe.
 *
 * @author Louis Wasserman
 * @since 12.0
 */
@GwtIncompatible
public abstract class ForwardingNavigableMap<K extends @Nullable Object, V extends @Nullable Object>
    extends ForwardingSortedMap<K, V> implements NavigableMap<K, V> {

 *
 * <p>The {@code standard} methods and the collection views they return are not guaranteed to be
 * thread-safe, even when all of the methods that they depend on are thread-safe.
 *
 * @author Louis Wasserman
 * @since 12.0
 */
@GwtIncompatible
public abstract class ForwardingNavigableMap<K extends @Nullable Object, V extends @Nullable Object>
    extends ForwardingSortedMap<K, V> implements NavigableMap<K, V> {

      <version>1.0.9</version>
      <version>1.0.10</version>
      <version>1.0.11</version>
      <version>1.0.12</version>
      <version>1.1.0</version>
      <version>1.1.1</version>
      <version>1.2.0</version>
      <version>1.2.1</version>
      <version>1.3.0</version>
      <version>1.3.1</version>
      <version>1.3.2</version>
      <version>1.4.0</version>
      <version>1.4.1</version>

   * Description} annotation on the {@code GOLF} constant of enum {@code Sport}, use {@code
   * Enums.getField(Sport.GOLF).getAnnotation(Description.class)}.
   *
   * @since 12.0
   */
  public static Field getField(Enum<?> enumValue) {
    Class<?>
        clazz = enumValue.getDeclaringClass();
    try {
      return clazz.getDeclaredField(enumValue.name());

 *
 * <p>The {@code standard} methods and the collection views they return are not guaranteed to be
 * thread-safe, even when all of the methods that they depend on are thread-safe.
 *
 * @author Louis Wasserman
 * @since 12.0
 */
@GwtIncompatible
public abstract class ForwardingNavigableSet<E extends @Nullable Object>
    extends ForwardingSortedSet<E> implements NavigableSet<E> {

  /** Constructor for use by subclasses. */

 * 80..95 : Offset by a fixed positive offset. The bottom 4 bits of b1 are the top 4 bits of the offset.
 *    119 : Ignored.
 *    120 : Valid.
 *    121 : Disallowed
 *    122 : Mapped inline to the sequence: [b2].
 *    123 : Mapped inline to the sequence: [b2a].
 *    124 : Mapped inline to the sequence: [b2, b3].