public NewestFirstComparator(Date now){
  Preconditions.checkNotNull(now);
  mNow=new Date(now.getTime() + MILLIS_IN_DAY);
}

public NewestFirstComparator ( Date now ) { Preconditions . checkNotNull ( now ) ; mNow = new Date ( now . getTime ( ) + MILLIS_IN_DAY ) ; }
construct a comparator that sorts items by newest first . we ignore future creation dates using the supplied current date as a baseline .
