One-to-many association fails to work

[L Eder]

Hi members:

Could someone point me out in the below source code what is wrong or missing?

I want to depict:
       Scenario 1-----* Components

The problem is I am unable to see a drop-down list of scenarios in the
Component's create UI. It is only read '(none)' there.

The same symptom is seen in Scenario UI, after i click the Add
(Component) action.

Thanks, Eder

Component.java
"
public class Component implements Comparable<Component> {

...
    // region > scenario (reference property)
    private Scenario scenario;

    @Column(allowsNull = "true", name="scenario_id")
    public Scenario getScenario(){
        return scenario;
    }

    public void setScenario(final Scenario scenario){
        this.scenario = scenario;
    }

    // endregion
...
"

Scenario.java
"
    // //////////////////////////////////////
    // Components (collection),
    // Add (action), Remove (action)
    // //////////////////////////////////////

    @Getter @Setter
    @Persistent(mappedBy = "scenario", dependentElement = "true")
    private SortedSet<Component> components = new TreeSet<Component>();

    @Action(semantics = SemanticsOf.IDEMPOTENT)
    public Component add(
             final Component component) {
          return componentRepo.findByDescription(description);
    }
"