spring - JsonView returning empty json objects -

i trying implement jsonview selectively serialize fields entity json serialized has empty objects no fields. below code:

viewclass:

public class auditreportview {    public interface summary {} } 

entity:

@entity @sequencegenerator(name = "audit_report_sequence_generator", sequencename = "ejb_audit_report_seq", initialvalue = 1, allocationsize = 1) @table(name = "device_audit_report") @data public class auditreport implements serializable {     private static final long serialversionuid = 1246376778314918671l;     @id    @generatedvalue(strategy = generationtype.sequence, generator = "audit_report_sequence_generator")    @column(name = "id", nullable = false)    @jsonview(auditreportview.summary.class)    private long id;     @column(name = "device_id", nullable = false)    @jsonview(auditreportview.summary.class)    private string deviceid;     @column(name = "report_timestamp", nullable = false)    @jsonview(auditreportview.summary.class)    private calendar reporttimestamp;     @column(name = "user_id", nullable = false)    @jsonview(auditreportview.summary.class)    private long userid;     @column(name = "username", nullable = false)    @jsonview(auditreportview.summary.class)    private string username;     @column(name = "start_date", nullable = false)    @jsonview(auditreportview.summary.class)    private calendar startdate;     @column(name = "end_date", nullable = false)    @jsonview(auditreportview.summary.class)    private calendar enddate;     @onetomany(mappedby = "auditreport", fetch = fetchtype.lazy, orphanremoval = true, cascade={cascadetype.all})    private set<auditentry> auditentries = new hashset<auditentry>(); } 

controller:

   @jsonview(auditreportview.summary.class)    @requestmapping(method = requestmethod.get, value = "auditreportsummary")    public @responsebody responseentity<?> getauditreportsummary()    {       final list<auditreport> auditreports = auditdao.getauditreportsummary();        return new responseentity<>(auditreports, httpstatus.ok);    } 

json postman:

[   {},   {},   {} ] 

the database has 3 results , when debug definately pulling them out, no members being serialized. i'm using spring 4.3.7 , jackson 2.8.7. ideas of wrong or start debugging issue?

thanks