Would it be possible to associate a 3rd party jar with a specific package in JBoss BRMS ?

Issue

If we add the 3rd party jars to the /lib directory in  ${JBOSS_HOME}/server/default/lib, then every rule created through JBoss BRMS (Guvnor)   would be tied to the same jar version regardless of the package used  for creating this. Would it be possible to associate a 3rd party jar  with a specific Guvnor package ? In this way, we can deploy several  3rd party jars in Guvnor and use different versions of these jars for  each package created.