*     is not a power of two
   */
  @SuppressWarnings("fallthrough")
  // TODO(kevinb): remove after this warning is disabled globally
  public static int log2(long x, RoundingMode mode) {
    checkPositive("x", x);
    switch (mode) {
      case UNNECESSARY:
        checkRoundingUnnecessary(isPowerOfTwo(x));
        // fall through

/** Web specializations for {@link Floats} methods. */
public abstract class FloatsMethodsForWeb {

  @JsMethod(name = "Math.min", namespace = JsPackage.GLOBAL)
  public static native float min(float... array);

  @JsMethod(name = "Math.max", namespace = JsPackage.GLOBAL)
  public static native float max(float... array);

/** Web specializations for {@link Shorts} methods. */
public abstract class ShortsMethodsForWeb {

  @JsMethod(name = "Math.min", namespace = JsPackage.GLOBAL)
  public static native short min(short... array);

  @JsMethod(name = "Math.max", namespace = JsPackage.GLOBAL)
  public static native short max(short... array);

   * rate, and ability to be implemented with O(1) time complexity. The initial LRU implementation
   * operates per-segment rather than globally for increased implementation simplicity. We expect
   * the cache hit rate to be similar to that of a global LRU algorithm.
   */

  // Constants

  /**
   * The maximum capacity, used if a higher value is implicitly specified by either of the

   * one input completes with result X and another later with result Y, for Y to come before X in
   * the output future list. (Such races are impossible to solve without global synchronization of
   * all future completions. And they should have little practical impact.)
   *
   * <p>Cancelling a delegate future propagates to input futures once all the delegates complete,

  final Ticker ticker;

  /** Factory used to create new entries. */
  final EntryFactory entryFactory;

  /**
   * Accumulates global cache statistics. Note that there are also per-segments stats counters which
   * must be aggregated to obtain a global stats view.
   */
  final StatsCounter globalStatsCounter;

  /** The default cache loader to use on loading operations. */

   * add the suppression to the whole method (which turns off checking for a large section of code),
   * or extract a variable, and put the suppression on that. However, a local variable typically
   * doesn't work: Because nullness analyses typically infer the nullness of local variables,
   * there's no way to assign a {@code @Nullable T} to a field {@code T foo;} and instruct the

   */
  static Dispatcher perThreadDispatchQueue() {
    return new PerThreadQueuedDispatcher();
  }

  /**
   * Returns a dispatcher that queues events that are posted in a single global queue. This behavior
   * matches the original behavior of AsyncEventBus exactly, but is otherwise not especially useful.
   * For async dispatch, an {@linkplain #immediate() immediate} dispatcher should generally be
   * preferable.

  }

  /*
   * To avoid the need to call requireNonNull so much, we could consider more clever approaches,
   * such as:
   *
   * - Make checkOpen return the non-null `seq`. Then callers can assign that to a local variable or
   *   even back to `this.seq`. However, that may suggest that we're defending against concurrent
   *   mutation, which is not an actual risk because we use `synchronized`.

      assertFalse(entrySet.retainAll(asList(null, entryOf(1, 1), entryOf(15, 15))));
      checkEmpty(entrySet);
      checkEmpty(cache);
    }
  }

  /* ---------------- Local utilities -------------- */

  /** Most of the tests in this class run against every one of these caches. */
  private Iterable<LoadingCache<Object, Object>> caches() {
    // lots of different ways to configure a LoadingCache