MetricsSystemImpl creates MetricsSourceAdapter with wrong time unit parameter.

        jmxCacheTS = Time.now() + jmxCacheTTL;
  /**
   * Current system time.  Do not use this to calculate a duration or interval
   * to sleep, because it will be broken by settimeofday.  Instead, use
   * monotonicNow.
   * @return current time in msec.
   */
  public static long now() {
    return System.currentTimeMillis();
  }