public static boolean isAnyBlank(final Set<String> xs){
  if (xs == null || xs.isEmpty()) {
    return true;
  }
  for (  String x : xs) {
    if (isBlank(x)) {
      return true;
    }
  }
  return false;
}

public static boolean isAnyBlank ( final Set < String > xs ) { if ( xs == null || xs . isEmpty ( ) ) { return true ; } for ( String x : xs ) { if ( isBlank ( x ) ) { return true ; } } return false ; }
tests whether any string in the given set is blank .
