Just a reminder that while you are developing a JSF 2.0 project, you really, really, really should enable the Development Project Stage. Doing this enables better error messages, including in the client side JavaScript, at the cost of some performance.

Enabling this is as simple as putting the below into your web.xml:

<context-param>
  <param-name>javax.faces.PROJECT_STAGE</param-name>
  <param-value>Development</param-value>
</context-param>

When going into production, simply change the project stage to Production, like so:

<context-param>
  <param-name>javax.faces.PROJECT_STAGE</param-name>
  <param-value>Production</param-value>
</context-param>

This will turn off some error messages, and emphasize performance.