log4j for several apps

[skyme]

Hello everyone!
I want to deploy several .ear apps to the JBoss AS and I want them to use separate log4j configs (e.g. each project uses its own log4j.xml).
I've found advices about using separate log4j configs for diffrent contexts for one app, but the question is about diffrent apps.
Thank you!

[jaikiran]

See if this helps http://www.jboss.org/index.html?module=bb&op=viewtopic&t=128979#4125416

[skyme]

it's good, but has disadvantages.
I found a solution. I create MyRepositorySelector and put it to lib of JBoss. So, now LogManager will not be changed by another app.

But another question apeared.
I have app A and app B. They both use class C (in lib of JBoss). How the C knows what app calls him?