Casting and radio select : conversion error

Question

I'd like to display radio options differently, regarding of their type.
For example I have an OpenOption class which extends Option. So when I display it I'd like to add an input text box if the user select an open option :
                         <h:selectOneRadio value="#{q.answer}">
                             <s:selectItems value="#{q.target.options}" var="opt" label="#{opt.text}" />                       
                             <a:support event="onchange" reRender="pnlOpenText"/>
                         </h:selectOneRadio>                         
                         <a:outputPanel id="pnlOpenText">
                                 <h:panelGroup id="innerPnlOpenText" rendered="#{q.answer.class.simpleName eq 'OpenOption'}">
                                   <h:outputText value="#{q.answer.freeTextLabel}"/>&#160;
                                   <h:inputText value="#{q.freeText}" size="50"/>                                   </h:panelGroup>
                         </a:outputPanel>I use the following EL expression to test the type of the selected option :
#{q.answer.class.simpleName eq 'OpenOption'}It works well BUT if I select the open option and refresh the page, the RadioRenderer fail when trying to convert ALL the options into OpenOption :
Cannot convert Option[ id=null, text=Q1, rank=0 ] of type class Option to class OpenOptionFor the time being I see only one solution : put a type attribute in my Option class ... I believe this is not the best design.
Is there any other workaround ?
Would it be possible to have a renderer which doesnt infer the options type from the selected option but individually for each option ? I don't know anything about the spec ...
Thanks,
Bruno

Answer 1

Java is case sensitive language after all , plus beans getters and setters naming rules :)
SetConfirmClaim
must be
setConfirmClaim
It raises a question though whether more exact error reporting is achievable , not just "Conversion error has occured".