RichFaces has a "non documented" dependence of several apache commons libraries.
- Apache commons
- commons collections (commons-collections-3.x.jar)
- commons beanutils (commons-beanutils.jar)
- commons digester (commons-digester-1.x.jar)
- commons logging (commons-logging-1.x.jar, commons-logging-adapters-1.x.jar, commons-logging-api-1.x.jar)
ViewExpiredExceptions when using RichFaces with JSF 1.2
Don't even follow the link in RichFaces Developer Guide.
just add this to your web.xml
<context-param>
<param-name>facelets.BUILD_BEFORE_RESTORE</param-name>
<param-value>true</param-value>
</context-param>
