clas.getUniqueNamed(mb);
// generate and add get mapping name method
ExceptionMethodBuilder xb = new ExceptionMethodBuilder
(GETNAME_METHODNAME, GETNAME_SIGNATURE, cf, Constants.ACC_PUBLIC);
xb.appendLoadConstant(cf.getName());
xb.appendReturn("java.lang.String");
clas.getUniqueNamed(xb);
// add the interface to class
clas.getClassFile().addInterface(IUNMARSHALLABLE_INTERFACE);