Arenas allocate large chunks of memory for Go values, so they're likely to
be inefficient for allocating only small amounts of small Go values. They're
best used in bulk, on the order of MiB of memory allocated on each use.

Note that by allowing for this limited form of manual memory allocation
that use-after-free bugs are possible with regular Go values. This package

   *
   * <p>Even if the input range is empty, if it is connected on both sides by ranges mapped to the
   * same value those two ranges will be coalesced.
   *
   * <p><b>Note:</b> coalescing requires calling {@code .equals()} on any connected values, which
   * may be expensive depending on the value type. Using this method on range maps with large values
   * such as {@link Collection} types is discouraged.
   *
   * @since 22.0
   */

      assertEquals(WARMUP_SIZE, values.size());
      for (int i = WARMUP_MIN; i < WARMUP_MAX; i++) {
        Object value = warmed.get(i - WARMUP_MIN).getValue();
        assertTrue(values.contains(value));
        assertTrue(values.remove(value));
        assertFalse(values.remove(value));
        assertFalse(values.contains(value));
      }
      checkEmpty(values);
      checkEmpty(cache);
    }
  }

        String key = connection.getHeaderFieldKey(0);
        String value = connection.getHeaderField(0);
        for (int i = 1; key != null || value != null; i++) {
            List values = (List) map.get(key);
            if (values == null) {
                values = new ArrayList();
                map.put(key, values);
            }
            values.add(value);
            key = connection.getHeaderFieldKey(i);

     *
     * @param value the timestamp in milliseconds
     * @return Date object representing the timestamp, or null if value is null
     */
    public static Date date(final Long value) {
        if (value == null) {
            return null;
        }
        return new Date(value);
    }

    /**
     * Parses a date string using the default date format.
     *
     * @param value the date string to parse

   * null} if none exists. Inverse operation to {@link #next}.
   *
   * @param value any value of type {@code C}
   * @return the greatest value less than {@code value}, or {@code null} if {@code value} is {@code
   *     minValue()}
   */
  public abstract @Nullable C previous(C value);

  /**

        final Collection<String> values = queryMap.values();
        if (values.stream().anyMatch(s -> s.startsWith(filetypeField))) {
            final ResourceBundle resources = ResourceBundle.getBundle("fess_label", Locale.ENGLISH);
            final String[] fileTypes = ComponentUtil.getFileTypeHelper().getTypes();
            for (final String fileType : fileTypes) {
                final String value = filetypeField + ":" + fileType;

		if now.After(ent.ExpiresAt) {
			continue
		}
		keys = append(keys, ent.Key)
	}
	return keys
}

// Values returns a slice of the values in the cache, from oldest to newest.
// Expired entries are filtered out.
func (c *LRU[K, V]) Values() []V {
	c.mu.Lock()
	defer c.mu.Unlock()
	values := make([]V, 0, len(c.items))
	now := time.Now()
	for ent := c.evictList.Back(); ent != nil; ent = ent.PrevEntry() {

    }
  }

  /** getAndUpdate adds given value to current, and returns previous value */
  public void testGetAndUpdateWithSum() {
    AtomicDoubleArray aa = new AtomicDoubleArray(SIZE);
    for (int i : new int[] {0, SIZE - 1}) {
      for (double x : VALUES) {
        for (double y : VALUES) {
          aa.set(i, x);
          double z = aa.getAndUpdate(i, value -> value + y);
          assertBitEquals(x, z);

      return if (bit and set != 0) values[INITIAL_WINDOW_SIZE] else DEFAULT_INITIAL_WINDOW_SIZE
    }

  fun clear() {
    set = 0
    values.fill(0)
  }

  operator fun set(
    id: Int,
    value: Int,
  ): Settings {
    if (id < 0 || id >= values.size) {
      return this // Discard unknown settings.
    }

    val bit = 1 shl id
    set = set or bit
    values[id] = value
    return this
  }