return new EmptyContiguousSet<>(domain);
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  @GwtIncompatible
  @J2ktIncompatible
    @Override
  Object writeReplace() {
    return new SerializedForm<>(domain);
  }

  @GwtIncompatible
  @J2ktIncompatible

  }

  @J2ktIncompatible
  @GwtIncompatible // propagateIfPossible
  @SuppressWarnings("ThrowIfUncheckedKnownChecked")
  public void testPropagateIfPossible_noneDeclared_checked() {
    propagateIfPossible(new SomeCheckedException());
  }

  @J2ktIncompatible
  @GwtIncompatible // propagateIfPossible(Throwable, Class)
  public void testPropagateIfPossible_oneDeclared_unchecked() {

  }

  @GwtIncompatible // TODO
  public void testConstantMaxPowerOfSqrt2Unsigned() {
    assertEquals(
        /* expected= */ BigIntegerMath.sqrt(BigInteger.ZERO.setBit(2 * Long.SIZE - 1), FLOOR)
            .longValue(),
        /* actual= */ LongMath.MAX_POWER_OF_SQRT2_UNSIGNED);
  }

  @GwtIncompatible // BigIntegerMath // TODO(cpovirk): GWT-enable BigIntegerMath

   * well.
   */
  @GwtIncompatible // Predicates.instanceOf
  public void testIsInstanceOf_apply() {
    Predicate<@Nullable Object> isInteger = Predicates.instanceOf(Integer.class);

    assertTrue(isInteger.apply(1));
    assertFalse(isInteger.apply(2.0f));
    assertFalse(isInteger.apply(""));
    assertFalse(isInteger.apply(null));
  }

  @GwtIncompatible // Predicates.instanceOf

  @GwtIncompatible
  @J2ktIncompatible
  private static final class SerializedForm implements Serializable {
    final ImmutableCollection<?> collection;

    SerializedForm(ImmutableCollection<?> collection) {
      this.collection = collection;
    }

    Object readResolve() {
      return collection.asList();
    }

        assertFalse(isInBounds);
      }
    }
  }

  @GwtIncompatible // DoubleMath.roundToInt(double, RoundingMode)
  public void testRoundExactFractionalDoubleToIntFails() {
    for (double d : FRACTIONAL_DOUBLE_CANDIDATES) {
      assertThrows(ArithmeticException.class, () -> DoubleMath.roundToInt(d, UNNECESSARY));
    }
  }

  @GwtIncompatible // DoubleMath.roundToInt(double, RoundingMode)

    }
  }

  @GwtIncompatible // TODO
  public void testLog10ZeroAlwaysThrows() {
    for (RoundingMode mode : ALL_ROUNDING_MODES) {
      assertThrows(IllegalArgumentException.class, () -> BigIntegerMath.log10(ZERO, mode));
    }
  }

  @GwtIncompatible // TODO
  public void testLog10NegativeAlwaysThrows() {

  }

  @J2ktIncompatible
  @GwtIncompatible // maximumWeight
  public void testMaximumSize_andWeight() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().maximumSize(16);
    assertThrows(IllegalStateException.class, () -> builder.maximumWeight(16));
  }

  @J2ktIncompatible
  @GwtIncompatible // digs into internals of the non-GWT implementation

  }

  @J2ktIncompatible
  @GwtIncompatible // maximumWeight
  public void testMaximumSize_andWeight() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().maximumSize(16);
    assertThrows(IllegalStateException.class, () -> builder.maximumWeight(16));
  }

  @J2ktIncompatible
  @GwtIncompatible // digs into internals of the non-GWT implementation

    String result = task.toString();
    assertThat(result).contains("Custom thread name");
    task.cancel(true);
    exitLatch.await();
  }

  @J2ktIncompatible
  @GwtIncompatible // used only in GwtIncompatible tests
  private void awaitUnchecked(CyclicBarrier barrier) {
    try {
      barrier.await();
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }