[jboss-user] [JBoss Seam] - Class type issue

Hi, I have quite an interesting issue (which at this point has me stumped). I have a class Service that has a one-to-many to Topic (which is a base clase). Topic is extended into three other (CMSTopic, DFTopic and MMTopic). Service | @Entity | @Name("service") | @Table(name = "service") | public class Service implements Serializable { | private Map<Integer,Topic> topics = new HashMap<Integer,Topic>(); | | @OneToMany(mappedBy = "service") | @MapKey(name="id") | public Map<Integer,Topic> getTopics() { | return topics; | } | } Topic @Entity | @Name("topic") | @Table(name = "topic") | @Inheritance(strategy = InheritanceType.SINGLE_TABLE) | @DiscriminatorColumn(name = "topic_type", discriminatorType = DiscriminatorType.STRING) | | public class Topic implements Serializable { | private Service service; | @ManyToOne(fetch=FetchType.LAZY) | public Service getService() { | return service; | } | } | | and the extended classes e.g. CMSTopic | @Entity | @Name("cmsTopic") | @Inheritance(strategy = InheritanceType.SINGLE_TABLE) | @DiscriminatorColumn(discriminatorType = DiscriminatorType.STRING) | @DiscriminatorValue("CMS") | public class CMSTopic extends Topic { | } When I do a service.getTopics().values() the correct subclasses of Topic is returned. But for some reason the instance type is weird.. I get the following when doing an getClass() on each element in the returned map: class csir.structure.par.DFTopic class csir.structure.par.CMSTopic class csir.structure.par.Topic_$$_javassist_227 class csir.structure.par.CMSTopic Does anybody have an idea of why only one of these would be Topic_$$_javassist_227 while the others are the correct type ? Thanks Louis View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4060403#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...