code: public static ScheduledFuture<?> runWithScheduleAtFixedRate(
              long initialDelayMillis, long periodMillis, Runnable runnable) {
          return runWithScheduleAtFixedRate(initialDelayMillis, periodMillis,
                  "runWithScheduleAtFixedRate", runnable);
      }
docs: Run with schedule at fixed rate scheduled future.
  
  @param initialDelayMillis the initial delay millis
  @param periodMillis       the period millis
  @param runnable           the runnable
  @return the scheduled future