java.lang.ClassNotFoundException: org.ajax4jsf.Filter

Problem
=======
java.lang.ClassNotFoundException: org.ajax4jsf.Filter

Solution
========
[dependency]
[groupId]org.richfaces.framework[/groupId]
[artifactId]richfaces-api[/artifactId]
[version]3.3.1.GA[/version]
[/dependency]
[dependency]
[groupId]org.richfaces.framework[/groupId]
[artifactId]richfaces-impl[/artifactId]
[version]3.3.1.GA[/version]
[/dependency]
[dependency]
[groupId]org.richfaces.ui[/groupId]
[artifactId]richfaces-ui[/artifactId]
[version]3.3.1.GA[/version]
[/dependency]