Please use the google group to ask questions - thanks.

I have a user class looking like this:

@Entity
public class User{
@Id
private Long id;
@Column(name = "FIRST_NAME")
private String firstName;

@OneToMany(cascade = CascadeType.ALL)
@JoinColumn(name="GROUP_ID")
private Set groups = new HashSet();

//... and all the other getters and setters
}
@Entity
public class Group{

@Id
private Long id;
private String name;

//.. and many others plus their getters and setters
}

When I try to fill a user and add some groups, and then persist I get the following exception:

java.lang.RuntimeException: Null Getter for: com.company.rcde.entity.annotation.Group.RCDE_USER.

It seems like it is expecting a User to be defined and mapped in the Group class which is not what I want to achieve. I need just a unidirectional oneToMany mapping.

It is very frustrating such a simple mapping is not working. Or am I doing something wrong here?

I have to add that I'm not a newbie here. I have done several Hibernate-annotations mapping in the past.