assertThat(set.tailSet(2, false)).containsExactly(3).inOrder();
    assertThat(set.tailSet(3, false)).isEmpty();
  }

  public void testTailSet_tooLarge() {
    assertThat(ContiguousSet.create(Range.closed(1, 3), integers()).tailSet(4)).isEmpty();
  }

  public void testSubSet() {
    ImmutableSortedSet<Integer> set = ContiguousSet.create(Range.closed(1, 3), integers());

    if (ranges.isEmpty()) {
      return ImmutableMap.of();
    }
    RegularImmutableSortedSet<Range<K>> rangeSet =
        new RegularImmutableSortedSet<>(ranges, Range.<K>rangeLexOrdering());
    return new ImmutableSortedMap<>(rangeSet, values);
  }

  @Override
  public ImmutableMap<Range<K>, V> asDescendingMapOfRanges() {
    if (ranges.isEmpty()) {
      return ImmutableMap.of();
    }

        try {
            if (!directoriesToStopWatching.isEmpty()) {
                if (!fileWatcher.stopWatching(directoriesToStopWatching)) {
                    LOGGER.debug("Couldn't stop watching directories: {}", directoriesToStopWatching);
                }
            }
            if (!directoriesToStartWatching.isEmpty()) {
                fileWatcher.startWatching(directoriesToStartWatching);

    public static <T> BroadcastDispatch<T> empty(Class<T> type) {
        return new EmptyDispatch<T>(type);
    }

    public Class<T> getType() {
        return type;
    }

    public abstract boolean isEmpty();

    public abstract int size();

    public BroadcastDispatch<T> add(Dispatch<MethodInvocation> dispatch) {
        return add(dispatch, dispatch);
    }

    public BroadcastDispatch<T> add(T listener) {

  protected AbstractMapBasedMultimap(Map<K, Collection<V>> map) {
    checkArgument(map.isEmpty());
    this.map = map;
  }

  /** Used during deserialization only. */
  final void setMap(Map<K, Collection<V>> map) {
    this.map = map;
    totalSize = 0;
    for (Collection<V> values : map.values()) {
      checkArgument(!values.isEmpty());
      totalSize += values.size();
    }
  }

  /**

     * 最初の要素を返します。
     *
     * @return 最初の要素
     */
    public E getFirst() {
        if (isEmpty()) {
            throw new NoSuchElementException();
        }
        return getFirstEntry().element;
    }

    /**
     * 最後の要素を返します。
     *
     * @return 最後の要素
     */
    public E getLast() {
        if (isEmpty()) {
            throw new NoSuchElementException();
        }

            } else {
                if (assertionError) {
                    placeholder = new PlaceholderAssertionError(type, message, getMessageExec, toString, toStringRuntimeExec, causes.isEmpty() ? null : causes.get(0));
                } else {

                if (resultsPerPage instanceof Integer) {
                    form.num = (Integer) resultsPerPage;
                }
            }
        }

        if (StringUtil.isBlank(form.q) && form.fields.isEmpty() && !form.hasConditionQuery()) {
            // redirect to index page
            form.q = null;
            return redirectToRoot();
        }

        try {
            buildFormParams(form);

            Set<ModuleComponentIdentifier> componentIdentifiers = getModuleComponentIdentifiers();
            if (componentIdentifiers.isEmpty()) {
                return;
            }

            List<Class<? extends Artifact>> types = getAuxiliaryArtifactTypes(visitor);
            if (types.isEmpty()) {
                return;
            }

        if (repo != null) {
            String id = repo.getId();

            if (id == null || id.isEmpty()) {
                throw new InvalidRepositoryException("Repository identifier missing", "");
            }

            String url = repo.getUrl();

            if (url == null || url.isEmpty()) {
                throw new InvalidRepositoryException("URL missing for repository " + id, id);
            }