code: public static <T> void notNullOrEmpty(Collection<T> list, String message) {
  
  		isFalse(list == null || list.size() == 0, message);
  	}
docs: Tests if list is null or empty
  
  @param list    must be have at least one element
  @param message to return in exception
  @param <T>     object type
  @throws IllegalArgumentException if list == null or list.size() == 0