assertEquals("c", Iterables.getLast(sortedSet));
  }

  public void testGetLast_withDefault_singleton() {
    Iterable<String> iterable = Collections.singletonList("foo");
    assertEquals("foo", Iterables.getLast(iterable, "bar"));
  }

  public void testGetLast_withDefault_empty() {
    Iterable<String> iterable = Collections.emptyList();
    assertEquals("bar", Iterables.getLast(iterable, "bar"));
  }

    assertEquals("c", Iterables.getLast(sortedSet));
  }

  public void testGetLast_withDefault_singleton() {
    Iterable<String> iterable = Collections.singletonList("foo");
    assertEquals("foo", Iterables.getLast(iterable, "bar"));
  }

  public void testGetLast_withDefault_empty() {
    Iterable<String> iterable = Collections.emptyList();
    assertEquals("bar", Iterables.getLast(iterable, "bar"));
  }

        });
    }

    public List<CrawlingInfoParam> getLastCrawlingInfoParamList(final String sessionId) {
        final CrawlingInfo crawlingInfo = getLast(sessionId);
        if (crawlingInfo == null) {
            return Collections.emptyList();
        }
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        }
        return sessionId;
    }

    public synchronized void store(final String sessionId, final boolean create) {
        CrawlingInfo crawlingInfo = create ? null : getCrawlingInfoService().getLast(sessionId);
        if (crawlingInfo == null) {
            crawlingInfo = new CrawlingInfo(sessionId);
            try {
                getCrawlingInfoService().store(crawlingInfo);
            } catch (final Exception e) {

      service.awaitRunning();
      assertNotSame(State.STARTING, service.state());
    }

    @Override
    public synchronized void stopping(State from) {
      assertEquals(from, Iterables.getLast(stateHistory));
      stateHistory.add(State.STOPPING);
      if (from == State.STARTING) {
        try {
          service.awaitRunning();
          fail();
        } catch (IllegalStateException expected) {

      service.awaitRunning();
      assertNotSame(State.STARTING, service.state());
    }

    @Override
    public synchronized void stopping(State from) {
      assertEquals(from, Iterables.getLast(stateHistory));
      stateHistory.add(State.STOPPING);
      if (from == State.STARTING) {
        try {
          service.awaitRunning();
          fail();
        } catch (IllegalStateException expected) {

            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();
        }
        return getLastEntry().element;
    }

    /**
     * 最初のエントリを返します。
     *
     * @return 最初のエントリ
     */

  public static <T extends @Nullable Object> T getLast(Iterable<T> iterable) {
    // TODO(kevinb): Support a concurrently modified collection?
    if (iterable instanceof List) {
      List<T> list = (List<T>) iterable;
      if (list.isEmpty()) {
        throw new NoSuchElementException();
      }
      return getLastInNonemptyList(list);
    }

    return Iterators.getLast(iterable.iterator());
  }

  /**

  public static <T extends @Nullable Object> T getLast(Iterable<T> iterable) {
    // TODO(kevinb): Support a concurrently modified collection?
    if (iterable instanceof List) {
      List<T> list = (List<T>) iterable;
      if (list.isEmpty()) {
        throw new NoSuchElementException();
      }
      return getLastInNonemptyList(list);
    }

    return Iterators.getLast(iterable.iterator());
  }

  /**

   *
   * @throws NullPointerException if the last element is null; if this is a possibility, use {@link
   *     Iterables#getLast} instead.
   */
  @SuppressWarnings("nullness") // Unsafe, but we can't do much about it now.
  public final Optional<@NonNull E> last() {
    // Iterables#getLast was inlined here so we don't have to throw/catch a NSEE

    // TODO(kevinb): Support a concurrently modified collection?