The target platform is JBoss EAP 5.1.0.
Hmm, this is actually not community version, hence official support is who you should be asking this. ;-)
How to change the visibility in classloading so that it becomes visible?
Simple hint anyway:
* http://java.dzone.com/articles/jboss-microcontainer-classloading
* http://community.jboss.org/wiki/JBoss5custommetadatafiles
... but looking at the EAP5.1 config of EarClassLoaderDeployer::isolated, it's already false ...