Hi Chad,
It is a bug. Could you please file it at [1]?
Thanks,
~Jakub
[1]
https://jersey.dev.java.net/issues/
On Wed, May 20, 2009 at 03:54:25PM -0400, Chad McHenry wrote:
> I'm POSTing in JSON, but my resource is unmarshalling values
> explicitly set to null as the String "null".
>
> According to the spec (http://json.org), sending null (NOT quoted)
> should indicate the null value just the same as omitting the field.
> Here though, fields omitted (i.e. "note") are properly unmarshalled as
> null, but fields explicitly set to null (i.e. "firstName") are
> unmarshalled as the String value "null".
>
> Is there a setting I am missing in JAXBContextResolver?
>
>
>
> ==== POST to resource =============
> $ > curl -X POST -D- -H 'Content-type: application/json' \
> -d '{"firstName":null,"lastName":"Smith"}' \
> --basic http://red:good@localhost/myapp/api/contact
>
> HTTP/1.1 200 OK
> Content-Type: application/json
> Transfer-Encoding: chunked
> Server: Jetty(6.1.16)
>
> {"firstName":"null","id":14,"lastName":"Smith"}
>
> ==== Server log =============
> INFO ContactResource - firstName: null len=4 (60)
> INFO ContactResource - note: null len=0 (62)
>
> ==== ContactResource.java =============
> @Path("/contact")
> @Produces(MediaType.APPLICATION_JSON)
> @Component
> @Scope("singleton")
> @Transactional
> public class ContactResource {
> @POST
> public Contact create(Contact contact) {
> String name = contact.getFirstName();
> log.info("firstName: "+name+" len="+(name==null?0:name.length()));
> String note = contact.getNote();
> log.info("note: "+note+" len="+(note==null?0:note.length()));
>
> contactDao.insert(contact);
>
> return contact;
> }
> }
> ==== JAXBContextResolver.java =============
> @Provider
> @Component
> public final class JAXBContextResolver implements ContextResolver<JAXBContext> {
> private final JAXBContext context;
> private final Set<Class<?>> types;
> private final Class<?>[] cTypes = {
> Contact.class
> };
> public JAXBContextResolver() throws Exception {
> this.types = new HashSet<Class<?>>(Arrays.asList(cTypes));
> this.context = new
> JSONJAXBContext(JSONConfiguration.natural().build(), cTypes);
> }
> public JAXBContext getContext(Class<?> objectType) {
> return (types.contains(objectType)) ? context : null;
> }
> }
> ==== Contact.java =============
> @XmlRootElement
> public class Contact {
> private Integer id;
> private String firstName;
> private String lastName;
> private String note;
> public Integer getId() {
> return id;
> }
> public void setId(Integer id) {
> this.id = id;
> }
> public String getFirstName() {
> return firstName;
> }
> public void setFirstName(String firstName) {
> this.firstName = firstName == null ? null : firstName.trim();
> }
> public String getLastName() {
> return lastName;
> }
> public void setLastName(String lastName) {
> this.lastName = lastName == null ? null : lastName.trim();
> }
> public String getNote() {
> return note;
> }
> public void setNote(String note) {
> this.note = note == null ? null : note.trim();
> }
> }
>
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