When make sense change the CallByValue attribute of server/default/deploy/ear-deployer.xml and Naming service in server/default/conf/jboss-service.xml?

[1] has a description but i try apply this behavior on my JBoss and don't work fine.

My test scenario is described at [2].

[1] https://www.jboss.org/community/docs/DOC-9288
[2] http://www.jboss.com/index.html?module=bb&op=viewtopic&t=144724