@SuppressWarnings("GoodTime") // duration decomposition
  private static long toNanosSaturated(Duration duration) {
    // Using a try/catch seems lazy, but the catch block will rarely get invoked (except for
    // durations longer than approximately +/- 292 years).
    try {
      return duration.toNanos();
    } catch (ArithmeticException tooBig) {
      return duration.isNegative() ? Long.MIN_VALUE : Long.MAX_VALUE;

   */
  @J2ObjCIncompatible
  @GwtIncompatible // Duration
  @SuppressWarnings({
    "GoodTime", // Duration decomposition
    "Java7ApiChecker",
  })
  @IgnoreJRERequirement // No more dangerous than wherever the caller got the Duration from
  @CanIgnoreReturnValue
  public CacheBuilder<K, V> expireAfterWrite(Duration duration) {
    return expireAfterWrite(toNanosSaturated(duration), NANOSECONDS);
  }

  /**

				var duration time.Duration
				// Only support UTC normalized timestamps.
				if ts.IsAdjustedToUTC {
					switch {
					case ts.Unit.IsSetNANOS():
						duration = time.Duration(val) * time.Nanosecond
					case ts.Unit.IsSetMILLIS():
						duration = time.Duration(val) * time.Millisecond
					case ts.Unit.IsSetMICROS():
						duration = time.Duration(val) * time.Microsecond
					default:

    return this;
  }

  /**
   * Advances the ticker value by {@code duration}.
   *
   * @since 28.0
   */
  @GwtIncompatible
  @J2ktIncompatible
  @CanIgnoreReturnValue
  @SuppressWarnings("Java7ApiChecker") // guava-android can rely on library desugaring now.
  public FakeTicker advance(Duration duration) {
    return advance(duration.toNanos());
  }

  /**

                                  - message: must be a valid duration greater than
                                      1ms
                                    rule: duration(self) >= duration('1ms')
                                maxConnectionDuration:
                                  description: The maximum duration of a connection.
                                  type: string

   * @since 28.0 (but only since 33.4.0 in the Android flavor)
   */
  @CanIgnoreReturnValue
  @J2ktIncompatible
  @GwtIncompatible // java.time.Duration
  @ParametricNullness
  public static <V extends @Nullable Object> V getUninterruptibly(
      Future<V> future, Duration timeout) throws ExecutionException, TimeoutException {
    return getUninterruptibly(future, toNanosSaturated(timeout), TimeUnit.NANOSECONDS);
  }

  /**

   */
  @CanIgnoreReturnValue
  @J2ktIncompatible
  @GwtIncompatible // java.time.Duration
  @ParametricNullness
  @SuppressWarnings("Java7ApiChecker")
  @IgnoreJRERequirement // Users will use this only if they're already using Duration.
  public static <V extends @Nullable Object> V getUninterruptibly(
      Future<V> future, Duration timeout) throws ExecutionException, TimeoutException {

  public FakeTicker advance(Duration duration) {
    return advance(duration.toNanos());
  }

  /**
   * Sets the increment applied to the ticker whenever it is queried.
   *
   * <p>The default behavior is to auto increment by zero. i.e: The ticker is left unchanged when
   * queried.
   */
  @SuppressWarnings("GoodTime") // should accept a java.time.Duration
  @CanIgnoreReturnValue

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import com.google.j2objc.annotations.J2ObjCIncompatible;
import java.time.Duration;
import java.util.concurrent.TimeUnit;

/**
 * An object that accurately measures <i>elapsed time</i>: the measured duration between two
 * successive readings of "now" in the same process.
 *
 * <p>In contrast, <i>wall time</i> is a reading of "now" as given by a method like

    assertThrows(IllegalStateException.class, () -> builder2.softValues());
    assertThrows(IllegalStateException.class, () -> builder2.weakValues());
  }

  @GwtIncompatible // Duration
  public void testLargeDurationsAreOk() {
    Duration threeHundredYears = Duration.ofDays(365 * 300);
    CacheBuilder<Object, Object> unused =
        CacheBuilder.newBuilder()
            .expireAfterWrite(threeHundredYears)