From this thread:
I've been using version 1.7.4 for a couple of months. All my db access is routed >through an app server. In my GameActivator class I do a JNDI lookup and obtain a >remote reference to an EJB 3.0 session bean.
In 1.9.4, it seems all JNDI lookups are routed through the provided jndi-service. Now >my EJB lookups are failing becuase of
Unknown reference type: sun.proxy.$Proxy82 at com.cubeia.firebase.service.jndi.impl.ServiceImpl.tryLoadReference(ServiceImpl.java:124)