This issue was discussed in great detail in June (http://mail-archives.apache.org/mod_mbox/openwebbeans-dev/201006.mbox/browser) on the developers forum. The title of the thread is "problems with lack of archive-centric BeanManager".
The main problem is described below (snippet from discussion):
"...Our current design does not permit either of the following scenarions, AFAICT:
b.jar and c.jar both enable the interceptor defined in a.jar
(treated as a duplicate)
Exactly one of b.jar and c.jar enables the interceptor defined in
a.jar (ends up enabled for beans from either archive if enabled in one
– this is in the more troubling neighborhood)..."