Hello.

I've searched on the net, but this bug is not often encountered.

The context is the following: the user must select a list of zone (areas), and populate a list of strazi (streets) with their corresponding streets.

<a:region id="zoneRegion">
                        <s:decorate id="zoneDecorate" template="/backend/layout/edit.xhtml" rendered="#{newApartamentInBloc.cerere}">
                            <ui:define name="label">Zona:</ui:define>
                            <h:selectManyListbox id="listaZone" value="#{apartamentInBlocCreate.listaZone}" size="6">
                                <s:selectItems value="#{apartamentInBlocCreate.getZone()}" var="zona" label="#{zona.nume}"/>
                                <s:convertEntity/>
                                <a:support id="zonaAjax" event="onblur" ajaxSingle="true" reRender="listaStrazi"/>
                            </h:selectManyListbox>
                            <a:status id="statusZona">
                                <f:facet name="start">
                                    <h:graphicImage value="/img/spinner.gif"/>
                                </f:facet>
                            </a:status>
                        </s:decorate>
</a:region >

The concerning parts of code from my bean ApartamentInBlocCreate are:

    @ManyToMany(fetch = FetchType.EAGER)
    @JoinTable(name = "APARTAMENTINBLOC_ZONE", joinColumns = @JoinColumn(name = "APARTAMENTINBLOC_ID"), inverseJoinColumns = @JoinColumn(name = "ZONA_ID"))
    @OrderBy("nume asc")
    @Fetch(FetchMode.SUBSELECT)
    private List<Zona> listaZone = new ArrayList<Zona>();

    public List<Zona> getListaZone(){
        return listaZone;
    }

    public void setListaZone(List<Zona> listaZone){
        this.listaZone = listaZone;
        this.setStrazi(stradaDAO.fillStraziByZone(listaZone));
    }

and the code for the called method:

  public List<Strada> fillStraziByZone(List<Zona> zone){
        log.info("1 stradaDAO.fillStraziByZone");
        log.info("2 zone size #0", zone.size());
        
        String hql = "from com.brit.apit.realEstate.Strada as o where 1 = 1";
        if (zone.size() >= 1) { // if at least one value was picked
            hql += " and (";
            for (Zona obj : zone) {
                hql += "o.zona.id=" + obj.getId() + " or ";
            }
            hql = hql.substring(0, hql.length() - 4);// removing last " or "
            hql += ") order by o.nume asc";
        }
        Query q = entityManager.createQuery(hql);
        return (List<Strada>)q.getResultList();        
    }

In fillStraziByZone the zone size is always doubled. If I've selected 3 zone, the log prints that the zone size is 6.
But when i persist the apartamentInBlocCreate bean, the size  of the listaZone is correct: 3.

Perhaps it is a view problem?

Thank you.