It is possible - but it would help if you included some information on the issues you were having.
I get this error
Error configurin class aplication listener org.apache.myfaces.webapp.StartupServletContextListener
Well - is the myfaces jar files in the classpath? What have you debugged so far?
Are you packaging your own JSF impl or using the built in one of AS 4.2?
We need you to provide more info to get effective help.
I´m using the same as in AS 4.0
thanks a lot