0 Replies Latest reply on Jul 1, 2008 2:50 PM by Mikael Andersson

    Error page design advice wanted

    Mikael Andersson Master


      I'm playing around with creating an error page and have run into a little problem.
      My aim is to create an error page which displays as much information as possible.

      I've used the messages.xhtml page from the wiki for inspiration.

      In pages.xml I redirect all errors to an error.xhtml page.

      I have a page with a page action which executes a method that creates a NPE (errorBacking is EVENT scoped).

      <page xmlns="http://jboss.com/products/seam/pages"
             xsi:schemaLocation="http://jboss.com/products/seam/pages http://jboss.com/products/seam/pages-2.0.xsd">
           <action execute="#{errorBacking.createNpe}"/>

      If I have the following in error.xhtml:

      <s:fragment rendered="#{! empty org.jboss.seam.caughtException}">
      <ui:repeat value="#{org.jboss.seam.handledException.stackTrace}" var="stackElement">

      I get this error:

      SEVERE: Error Rendering View[/_errorPages/error.xhtml]
      javax.faces.FacesException: javax.el.PropertyNotFoundException: /_errorPages/error.xhtml @17,66 rendered="#{! empty org.jboss.seam.caughtException}": Property 'caughtException' is not found on type: org.jboss.seam.Namespace

      Looking in Conversations.java it looks that the org.jboss.seam.caughtException is set if there is an active conversation (or something similar).

      Also ge the above error for the below xhtml if I access the error page without there being a handled exception:

      <s:fragment rendered="#{! empty org.jboss.seam.handledException}">
      Top level exception : #{org.jboss.seam.handledException.class.name}: #{org.jboss.seam.handledException.message}
      <ui:repeat value="#{org.jboss.seam.handledException.stackTrace}" var="stackElement">

      Seems like the EL resloves org.jboss.seam to a Namespace object.

      Is the naming of components with dots in the name a good idea?