Oh, I just found out that there should be hassle to copy jbss-aop.xml
I'm just putting it into src/main/resources/META-INF/jboss-aop.xml and it gets copied into the right place during the package goal.
Don't forget to point jboss-aop maven plugin to its location:
<aoppaths>
<aoppath>src/main/resources/META-INF/jboss-aop.xml</aoppath>
</aoppaths>