Stopwatch stopwatch = Stopwatch.createStarted();
    Semaphore semaphore = new Semaphore(99);
    assertTrue(tryAcquireUninterruptibly(semaphore, 0, MILLISECONDS));
    assertTrue(tryAcquireUninterruptibly(semaphore, -42, MILLISECONDS));
    assertTrue(tryAcquireUninterruptibly(semaphore, LONG_DELAY_MS, MILLISECONDS));
    assertTimeNotPassed(stopwatch, LONG_DELAY_MS);
  }

    Stopwatch stopwatch = Stopwatch.createStarted();
    Semaphore semaphore = new Semaphore(99);
    assertTrue(tryAcquireUninterruptibly(semaphore, 0, MILLISECONDS));
    assertTrue(tryAcquireUninterruptibly(semaphore, -42, MILLISECONDS));
    assertTrue(tryAcquireUninterruptibly(semaphore, LONG_DELAY_MS, MILLISECONDS));
    assertTimeNotPassed(stopwatch, LONG_DELAY_MS);
  }

   */
  @J2ktIncompatible
  @GwtIncompatible // concurrency
  @IgnoreJRERequirement // Users will use this only if they're already using Duration.
  public static boolean tryAcquireUninterruptibly(Semaphore semaphore, Duration timeout) {
    return tryAcquireUninterruptibly(semaphore, toNanosSaturated(timeout), NANOSECONDS);
  }

  /**
   * Invokes {@code semaphore.}{@link Semaphore#tryAcquire(int, long, TimeUnit) tryAcquire(1,