[jboss-user] [JBoss Seam] - Stateless Converter: First works, then ClassNotFoundExceptio

[bfo81]

I have an entity Person that has a ManyToMany relation to other Persons ("friends" ;)). When editing one person there's a SelectManyMenu showing all Persons and you can select or deselect friends.

The SelectManyMenu has a Converter (... converter="#{personConverter}"), of course. This one is implemented as a Stateless Session Bean with @Name("personConverter") and the two methods getAsString(...) and getAsObject(...).

The persons are filled into that List by <f:selectItems value="#{personListe.selectItems}" />. You guess it, the selectItems() method returns a List, which's items are all added like this: ...add(new SelectItem(aPerson.getId(), aPerson.getName()));

So far so good. Should be nothing special here ;).

When going to the edit page everything works fine, and the Log shows me that the getAsString-method is called for every Person in the list.

BUT: As soon as a safe the edited person (and it doesn't play a role whether I select friends or not) there's an Exception:
FATAL [org.apache.myfaces.renderkit.html.HtmlRepsonseStateManager] Cannot decode Object from Base64 String
  | java.lang.ClassNotFoundException: No ClassLoaders found for: de.beffo.test.converter.PersonConverter
  |     at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:212)
  |     at ...

Well... how can it be that the Converter is found when the page is displayed, and not found right after submitting? Anyone having experience with such a behaviour?


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