*/
  public static boolean isWellFormed(byte[] bytes) {
    return isWellFormed(bytes, 0, bytes.length);
  }

  /**
   * Returns whether the given byte array slice is a well-formed UTF-8 byte sequence, as defined by
   * {@link #isWellFormed(byte[])}. Note that this can be false even when {@code
   * isWellFormed(bytes)} is true.
   *
   * @param bytes the input buffer

      return array.length;
    }
  }

  /**
   * Implementation of Striped where up to 2^k stripes can be represented, using an
   * AtomicReferenceArray of size 2^k. To map a user key into a stripe, we take a k-bit slice of the
   * user key's (smeared) hashCode(). The stripes are lazily initialized and are weakly referenced.
   */
  @VisibleForTesting
  static final class SmallLazyStriped<L> extends PowerOfTwoStriped<L> {

  }

  /**
   * Configures the given map maker to use weak keys, if possible; does nothing otherwise (i.e., in
   * GWT). This is sometimes acceptable, when only server-side code could generate enough volume
   * that reclamation becomes important.
   */
  @J2ktIncompatible
  static MapMaker tryWeakKeys(MapMaker mapMaker) {
    return mapMaker.weakKeys();
  }

       * instance.
       */
      super("");
    }

    @Override
    Comparable<?> endpoint() {
      throw new IllegalStateException("range unbounded on this side");
    }

    @Override
    boolean isLessThan(Comparable<?> value) {
      return true;
    }

    @Override
    BoundType typeAsLowerBound() {
      throw new IllegalStateException();
    }

  }

  /**
   * Configures the given map maker to use weak keys, if possible; does nothing otherwise (i.e., in
   * GWT). This is sometimes acceptable, when only server-side code could generate enough volume
   * that reclamation becomes important.
   */
  @J2ktIncompatible
  static MapMaker tryWeakKeys(MapMaker mapMaker) {
    return mapMaker.weakKeys();
  }

   * trouble than just using Object.class.)
   *
   * Then we declare the getters for these fields as @GwtIncompatible so that no one can try to use
   * them under J2CL—or, as an unfortunate side effect, under GWT. We do still give the fields
   * themselves their proper values under GWT, since GWT's EnumMap does need the Class instance.
   *

      AtomicReferenceArray<ReferenceEntry<K, V>> table = segment.table;
      for (int i = 0; i < table.length(); i++) {
        for (ReferenceEntry<K, V> e = table.get(i); e != null; e = e.getNext()) {
          if (map.isLive(e, now)) {
            result++;
          }
        }
      }
    }
    return result;
  }

  public void testClear() {
    LocalCache<Object, Object> map =

    return ATOMIC_HELPER.atomicHelperTypeForTest();
  }

  private enum VarHandleAtomicHelperMaker {
    INSTANCE {
      /**
       * Implementation used by non-J2ObjC environments (aside, of course, from those that have
       * supersource for the entirety of {@link AbstractFutureState}).
       */
      @Override
      @J2ObjCIncompatible
      @Nullable AtomicHelper tryMakeVarHandleAtomicHelper() {

 * for any {@link Object}. Also offers basic text processing methods based on this function.
 * Implementations are strongly encouraged to be side-effect-free and immutable.
 *
 * <p>Throughout the documentation of this class, the phrase "matching character" is used to mean
 * "any {@code char} value {@code c} for which {@code this.matches(c)} returns {@code true}".
 *

          } else {
            return logFloor + 1;
          }
        }
        // Since sqrt(2) is irrational, log2(x) - logFloor cannot be exactly 0.5
        //
        // To determine which side of logFloor.5 the logarithm is,
        // we compare x^2 to 2^(2 * logFloor + 1).
        BigInteger x2 = x.pow(2);
        int logX2Floor = x2.bitLength() - 1;