Iam using JSF 2.1 mojjara and primefaces 3.5 with WAS7 i complete the integration the FacesServlet is loaded from my JSF jar and the other component
the problem that iam facing seems now is the following :
Unless you've added the Mojarra 2.1 jars as a shared library in WAS 7, you'll get the baked-in WAS version (which I think is 1.2). Then when you deploy the application you'll have to configure it to use that shared library.