the_fredo thank you for your response. I've a look to the topic but I didn't be able to fix the problem. I've replaced jsf-facelets library for jsf-facelets-1.1.15.B1.jar and I changed .xhtml files. I made changes like this: Changed | <ga:parameter name="fn" target="#{task_filter_notstarted}" default="true"/> | <ga:parameter name="fr" target="#{task_filter_running}" default="true"/> | <ga:parameter name="fs" target="#{task_filter_suspended}" default="true"/> | <ga:parameter name="fe" target="#{task_filter_ended}" default="false"/> | To | | <ga:parameter name="fn" target="#{task_filter_notstarted}" default="${true}"> | <f:converter converterId="javax.faces.Boolean"/> | </ga:parameter> | <ga:parameter name="fr" target="#{task_filter_running}" default="${true}"> | <f:converter converterId="javax.faces.Boolean"/> | </ga:parameter> | <ga:parameter name="fs" target="#{task_filter_suspended}" default="${true}"> | <f:converter converterId="javax.faces.Boolean"/> | </ga:parameter> | <ga:parameter name="fe" target="#{filter_ended}" default="${false}"> | <f:converter converterId="javax.faces.Boolean"/> | </ga:parameter> | And changed | <h:selectBooleanCheckbox id="task_notstarted_i" value="#{task_filter_notstarted}"/> | To | <h:selectBooleanCheckbox id="task_notstarted_i" value="#{task_filter_notstarted == 'true'}"/> | What am I doing bad?? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4212711#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...