var="item" value="#{cccaptarPaciente.listaDir}" // listaDir is a list of object of the class CDireccionesList
<h:selectOneRadio id="elemtradio" value="#{cccaptarPaciente.dirselect}" border="0">
<f:selectItem itemValue="#{item}"/>
</h:selectOneRadio>
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bean:
private CDireccionesList dirselect; //
ERROR: null Converter