Just wanted to share this with the community - and save you a few hours of dependency hell.

You can shave 3.9 MB off of your WAR files when using PrimeFaces 5.1 as a module on WildFly 8.x

Files are hosted here: PeterFalken/WildFly8-Modules · GitHub

You'll need to use a boss-deployment-structure.xml file in the META-INF directory on the top level of your WAR file

with the following content:

<jboss-deployment-structure>
     <deployment>
          <dependencies>
               <module name="org.primefaces" meta-inf="export" />
          </dependencies>
     </deployment>
</jboss-deployment-structure>

and place the JAR files (prime faces-5.1.jar & all-themes-1.0.10.jar) under: JBOSS_HOME/modules/system/layers/base/org/primefaces/main

and a module.xml file with this content:

<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.3" name="org.primefaces">
     <resources>
          <resource-root path="primefaces-5.1.jar" />
          <resource-root path="all-themes-1.0.10.jar" />
     </resources>
     <dependencies>
          <module name="javax.faces.api" />
          <module name="javax.api"/>
     </dependencies>
</module>

I'm looking for some help to do the same for RichFaces 4.5.Final and also RichFaces 5.Beta3