code: public static boolean containsAtLeastOneNonBlank(List<String> list){
  		for(String str : list){
  			if(StringUtils.isNotBlank(str)){
  				return true;
  			}
  		}
  		return false;
  	}
docs: Check that a list allowing null and empty item contains at least one element that is
  not blank.
  @param list can't be null
  @return