code: public static void mapping(String mappedFieldName, String mappedClassName){
  		throw new MappingErrorException(MSG.INSTANCE.message(mappingErrorException2length,mappedFieldName,mappedClassName));
  	}
docs: Thrown when the length of classes and attribute parameter isn't the same.
  @param mappedFieldName name of the mapped field
  @param mappedClassName name of the mapped field's class