<s:selectItems and noSelectionLabel

[hager]

hello,
I have some problems with the noSelectionLabel attribute,

I want to make a research by collaborator's type.
collaborateur's type is a String
for example : when i choose the type "interne" from the selectOneMenu, i obtain all collaborators which have intern type.
my problem is, when i put the noSelectionLabel attribute, the research is wrong, but when i remove it, i have the appropriate collaborators.
but i have to use the noSelectionLabel attribute.

in page.xhtml

<ui:define name="label">#{msgCollaborateur.type}</ui:define>
 <h:selectOneMenu id="selectOneType" value="#{collaborateurList.collaborateur.type}">
<s:selectItems value="#{collaborateurHome.typeCollaborateurKeys}" var="typeCollaborateurIterator" label="#{collaborateurHome.typeCollaborateurMap[typeCollaborateurIterator]}"
id="selectType"
noSelectionLabel="all Types"/>
</h:selectOneMenu>

in collaborateurHome.java:

package com.fitnetapplication.resources.model;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.framework.EntityQuery;
import java.util.List;
import java.util.Arrays;

@Name("collaborateurList")
public class CollaborateurList extends EntityQuery {

 @In(required=false)
 Societe currentSociete;



 private static final String[] RESTRICTIONS = {
 "lower(collaborateur.type) like concat(lower(#{collaborateurList.collaborateur.type}),'%')",
 "lower(collaborateur.nom) like concat(lower(#{collaborateurList.collaborateur.nom}),'%')",
 "lower(collaborateur.prenom1) like concat(lower(#{collaborateurList.collaborateur.prenom1}),'%')",
 };

 private Collaborateur collaborateur = new Collaborateur();

 @Override
 public String getEjbql() {

 if(currentSociete != null){
 return "select collaborateur from Collaborateur collaborateur where collaborateur.societe = #{currentSociete}";
 }
 return "select collaborateur from Collaborateur collaborateur";

 }

 @Override
 public Integer getMaxResults() {
 return 25;
 }

 public Collaborateur getCollaborateur() {
 return collaborateur;
 }

 @Override
 public List<String> getRestrictions() {
 return Arrays.asList(RESTRICTIONS);

 }


 @Override public List<Collaborateur> getResultList()
 {
 List<Collaborateur> a=super.getResultList();
 System.out.println("EJBQL = " + super.getRenderedEjbql());
 return a;
 }


}

thanks.