// make deserializer use JAXB annotations (only)
mapper.getDeserializationConfig().setAnnotationIntrospector(ai);
// make serializer use JAXB annotations (only)
mapper.getSerializationConfig().setAnnotationIntrospector(ai);
try {
xml = mapper.writeValueAsString(rp);
} catch (Exception ex) {
}
return xml;
}