docs: public long deadline(final long timerId)
      {
          final int wheelIndex = tickForTimerId(timerId);
          final int arrayIndex = indexInTickArray(timerId);
  
          if (wheelIndex < wheel.length)
          {
              final long[] array = wheel[wheelIndex];
  
              if (arrayIndex < array.length)
              {
                  return array[arrayIndex];
              }
          }
  
          return NULL_TIMER;
      }