Use the WAR and libs attached and mentioned in Forum page (see reference).
A page using facelet with a dynamic datatable (pager, sortable header, dynamic columns) is implemented there.

After pressing a browser refresh button the page can not be shown any more.
There is a Error 500--Internal Server Error on Oracle Weblogic 10.3.0.0.
When running on Tomcat 6.0.20 the table data is not shown any more after the browser refresh.
The page is not working properly until webapp is restarted.

Steps to reproduce:
- deploy the facelets-example.war including any needed JARs (find it attached to forum post)
- point browser to http://localhost:7001/facelet-example/
or whereever your oracle weblogic is running
- you will see a table with two columns
- press refresh button in Browser
-> Exception occurs

See forum post for more details of exception message and description on how to deploy on tomcat.

Expected behaviour:
I expect that a browser refresh should show the same page as on first load and not bring up any error.