Problem with annotations and ID mapping in super class

smocz · **Joined:** Wed Mar 30, 2005 3:39 pm **Posts:** 4

Hi All,

I get an NPE, when I try to map the ID in a general super class and use the OneToOne mapping (with XDoclet this has been working fine).

Hibernate version:
3.0rc
annotations 3.0 alpha 3

Example:

Code:

@Entity
public class DomainObject extends AbstractDomainObject {

    private Address address;

    @OneToOne(cascade = { CascadeType.CREATE })
    @JoinColumn(name = "ADDRESS_ID")
    public Address getAddress() {
        return address;
    }

    public void setAddress( Address address ) {
        this.address = address;
    }
}

The general super class:

Code:

public abstract class AbstractDomainObject {

    private long id;

    @Id(generate = GeneratorType.AUTO)
    public long getId() {
        return id;
    }

    public void setId( long id ) {
        this.id = id;
    }
}

Stack trace:

Code:

java.lang.NullPointerException
   at org.hibernate.cfg.AnnotationBinder.bindOneToOne(AnnotationBinder.java:1139)
   at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:734)
   at org.hibernate.cfg.AnnotationBinder.processElementsOfAClass(AnnotationBinder.java:532)
   at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:382)
   at org.hibernate.cfg.AnnotationConfiguration.addAnnotatedClass(AnnotationConfiguration.java:44)

Database dialect:
org.hibernate.dialect.MySQLInnoDBDialect

Thanks for any help!
Swen

emmanuel · **Posted:** Tue Apr 05, 2005 1:12 pm

Please post a runnable test case into JIRA.
This case crossed my mind some times ago, but I did not check it.

smocz · **Joined:** Wed Mar 30, 2005 3:39 pm **Posts:** 4

I have created the JIRA entry HBX-210 + test case:
http://opensource.atlassian.com/projects/hibernate/browse/HBX-210

- Swen

emmanuel · **Posted:** Wed Apr 06, 2005 4:31 am