I've found in "Mastering Java Server Faces" p.283 that there is standard converter - "CharacterConverter" class, which has "Character" id. In JSF API I've found it too: [url] http://java.sun.com/javaee/javaserverfaces/1.2_MR1/docs/api/index.html [/url] And as for NPE, what should I do to instantiate standard converter like Character or Integer? I've thought it's enough to include the following tag libraries | | html xmlns="http://www.w3.org/1999/xhtml" | xmlns:ui="http://java.sun.com/jsf/facelets" | | xmlns:h="http://java.sun.com/jsf/html" | xmlns:f="http://java.sun.com/jsf/core" | | xmlns:s="http://jboss.com/products/seam/taglib"> | in my facelet template. But it seems it's not all I should do. Thanks, jquery View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4040620#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...