Constructor<SerializerFactory> sfCon = sfClass.getConstructor(
Class.class, QName.class);
Constructor<DeserializerFactory> dsfCon = dsfClass.getConstructor(
Class.class, QName.class);
SerializerFactory sf = sfCon.newInstance(cls, q);
DeserializerFactory dsf = dsfCon.newInstance(cls, q);
mTypeMapping.register(cls, q, sf, dsf);
}