Error messages are not displayed when using Seam exception handling with long running conversations

[shanwad]

We use seam exception handling to redirect a user to an error page when an unhandled exception is detected by Seam. 
This works fine unless we are using a Seam long running conversation.  In that case, after a unhandled exception is thrown, Seam re-directs the user to the error page, but the associated faces message specified in pages.xml is not displayed on the page.  Refreshing this page several times will eventually display that faces message.

Code in pages.xml is as below:
<exception class="java.lang.Throwable">
     <end-conversation />
     <redirect view-id="/pages/Error.xhtml">
          <message severity="ERROR">Internal Error.</message>
     </redirect>
  </exception>

We are using the Seam (2.0.1GA).
Do I  need to configure anything, so error message can be displayed in error page.

Thanks in adavnce 

[tekchandp]

try with this

     <exception>
          <redirect view-id="/pages/Error.xhtml">
                  <message severity="ERROR">Internal Error.</message>
                </redirect>
     </exception>

[shanwad]

Hi,
Thanks, It works fine.

Does it catch all kind of exceptions including runtime errors?
Is it known issue in seam 2.0.1 for the use of <exception class="java.lang.Throwable"> in pages.xml which in turn not display the error message in error page?

[tekchandp]

ya it catch all kind of Exception.

you can configure you all kind of Exception like.

<exception class="javax.persistence.EntityNotFoundException">
          <redirect view-id="/pages/Error.xhtml">
               <message>Not found</message>
          </redirect>
</exception>
<exception class="javax.persistence.OptimisticLockException">
          <end-conversation />
          <redirect view-id="/pages/Error.xhtml">
               <message>
                    Another user changed the same   data, please try again
               </message>
          </redirect>
</exception>
<exception class="org.jboss.seam.security.AuthorizationException">
          <redirect>
               <message>You don't have permission to do this</message>
          </redirect>
</exception>