The Problem is related to Weld: https://issues.jboss.org/browse/WELD-897
It is fixed in the current version of weld, however the JBoss AS 6 doesn't come with that by default.
The most trivial way, to upgrade weld is to go into your
$JBOSS_HOME/server/<whatever>/deployers/weld.deployer/
and delete the weld-core-no-jsf.jar
Then download the current weld-jar (https://repository.jboss.org/nexus/content/groups/public-jboss/org/jboss/weld/weld-core/1.1.1.Final/weld-core-1.1.1.Final.jar) and throw it into the weld.deployers directory.
At least it worked for me...
Good luck
This issue occurs on Mac OS Snow Leopard too, but the solution above solves the problem.
Tks
Yep I can confirm that.
The jboss as guys should really release a Jboss 6.1.0 with current weld and mojarra versions. I'm still using snapshot version of 6.1.0 in production :(