<f:view> <h:form>    <h:panelGrid>       <h:outputText value=" カンマ区切りで文字を入力して下さい" />       <h:inputText id="csvstr" required="true" value="#{listBean}">          <f:converter converterId="to.msn.wings.jsf.custom.CSV2ListConverter"/>       </h:inputText>       <h:message for="csvstr"/>       <h:commandButton value="Submit" action="success"/>    </h:panelGrid> </h:form> </f:view>