Depending on the development or production environment the WAR is outside or inside the EAR, so I didn't want to just move it to the server/default/lib.
You can still preserve (somesort of) isolation and have access at the same time,
if you put both deployments into same domain --> with a help of jboss-classloading.xml file.
* http://java.dzone.com/articles/jboss-microcontainer-classloading