init(owner, name, description, readersGroup, writersGroup);
setOjbConcreteClass(this.getClass().getName()); setRootDomainObject(RootDomainObject.getInstance());
    public ExecutionCourseForum(Person owner, String name, String description, Group readersGroup,            Group writersGroup) {        super();        init(owner, name, description, readersGroup, writersGroup);    }