Did you get to resolve this. I am running into the exact same problem. Since there is no web.xml with a jar that exposes EJB3 based web service I cannot seem to add the following to override the default impl provided with JBoss
<context-param>
<param-name>org.jboss.jbossfaces.WAR_BUNDLES_JSF_IMPL</param-name>
<param-value>true</param-value>
</context-param>
Any workarounds ?