code: public static final RetryPolicy retryUpToMaximumCountWithFixedSleep(int maxRetries, long sleepTime, TimeUnit timeUnit) {
      return new RetryUpToMaximumCountWithFixedSleep(maxRetries, sleepTime, timeUnit);
    }
docs: <p>
  Keep trying a limited number of times, waiting a fixed time between attempts,
  and then fail by re-throwing the exception.
  </p>