code: public static void xmlAttributeExistent(String path, Attribute attribute, Class<?> aClass){
  		throw new XmlMappingAttributeExistException (MSG.INSTANCE.message(xmlMappingAttributeExistException2,attribute.getName(),aClass.getSimpleName(),path));
  	}
docs: Thrown if attribute is present in the xml file.
  @param path xml path
  @param attribute attribute present
  @param aClass attribute's class