The XML descriptors in BV (validation.xml, constraint mapping XML files) use a
jboss.org specific namespace as of 1.1. We should change that into something under
jcp.org [1] which is what all other descriptors of Java EE techs do as of Java EE 7 (see Antonio Goncalves' blog post on this topic at [2]).
What's rather unclear to me is why most of techs share the same namespace "
http://xmlns.jcp.org/xml/ns/javaee", e.g. JSF, CDI and Servlet as per Antonio's post. I think having a specific names space for BV is more sensible (as done by JPA, too), not the least because BV isn't tied to EE.