Custom converter Error in h:SelectOneMenu

[Francisco Albarran]

Hi friends.... I have a problem implementing a custom converter...

my xhtml is:

...
<span class="cien">
    <h:outputLabel value="Director de Area Correspondiente:" styleClass="negritas" />
    <h:selectOneMenu value="#{ordenBO.director}" id="director-area" converter="superiorAuditoriaConverter" converterMessage="Error al seleccionar el Director">
        <f:selectItems value="#{ordenBO.directores}"></f:selectItems>
    </h:selectOneMenu>
    <p:message for="director-area"></p:message>
</span>    
...

this is how I fill my h:SelectOneMenu:

...
this.directores = new ArrayList<SelectItem>();
for (SuperiorAuditoriaDTO sup: daoSuperiorAuditoria.getDirectoresASM())
    this.directores.add(new SelectItem(sup, sup.getProfesion() + " " + sup.getNombre_completo()));
...

this is my Custom converter:

....
@FacesConverter(forClass = SuperiorAuditoriaDTO.class, value = "superiorAuditoriaConverter")
public class SuperiorAuditoriaConverter implements Converter {
	
	private static SuperiorAuditoriaDAO dao = new SuperiorAuditoriaDAO();
	
	public Object getAsObject(FacesContext arg0, UIComponent arg1, String id_persona) { 
		SuperiorAuditoriaDTO s = null;
		try {
			s = dao.getSuperiorASM(Integer.parseInt(id_persona));
		} catch(Exception e) {
			e.printStackTrace();
		}
		return s;
	}

	public String getAsString(FacesContext arg0, UIComponent arg1, Object auditor) {
		return String.valueOf(((SuperiorAuditoriaDTO) auditor).getId_persona());
	}

}

Can somebody help me?? I always got an error message saying that the value that I try to convert is not valid..



I'm using jsf 2 mojarra...
thanks..