The examples in the documentation "jboss-eap-4.3/doc/examples/gettingstarted/lib" package an older version of the seam jars.

Version with documentation:
1.2.0.PATCH1

Version in $DIST/seam
1.2.1.EAP_4.3

To avoid long term maintenance the example should probably pull from the seam that is provided in the dist - not package its own (my $.02).