When I annotate a POJO like this: @XmlElement(type=LocationInType.class) public Location getDropOffLocation() { return super.getDropOffLocation(); } Then Aegis seems to register this Type with Location.class so that EVERY time a Location object is encountered it uses the same LocationInType, even though other instances are NOT annotated in this fashion. Is this a bug or a feature? I am expecting the mappings to revert to default BeanInfo based introspection for all cases of Location that are not Annotated. Is there anyway I can ensure this behaviour?