@Override
    public Object findSerializer(Annotated am) {
        if (am.hasAnnotation(ObjectId.class)) {
            return ObjectIdSerializer.class;
        }
        return null;
    }
@ Override public Object findSerializer ( Annotated am ) { if ( am . hasAnnotation ( ObjectId . class ) ) { return ObjectIdSerializer . class ; } return null ; }
Handling of ObjectId annotated properties