Issue with property injection

[ZedroS Schwart]

Hi all

In a class called UtilisateursPage.java , I've put :
public abstract class UtilisateurPage extends BasePage implements
       PageBeginRenderListener {
   @Persist("client")
   public abstract String getInternalId();
   public abstract void setInternalId(Long id);
...}

I call this page somewhere else using :
   @InjectPage("UtilisateurPage")
   public abstract UtilisateurPage getUtilisateurPage();

   public IPage onEdit(Long id) {
       UtilisateurPage utilisateurPage = getUtilisateurPage();
       utilisateurPage.setInternalId(id);
       return utilisateurPage;
   }

When this page is called, thourgh the getUtilisateurPage() I got the error :
Exception invoking listener method onEdit of component
pages/admin/UtilisateursManager: Error at
context:/WEB-INF/pages/admin/UtilisateurPage.page, line 6, column 60: Method
'public abstract void administration.UtilisateurPage.setInternalId(
java.lang.Long)' (declared in class administration.UtilisateurPage) has no
implementation in class administration.UtilisateurPage (or enhanced subclass
$UtilisateurPage_40).

I don't know where it comes from... Could you help me please ?

I guess it's quite trivial but I don't the error...

Thanks in advance
ZedroS