Components in Web and EJB container should always have access to RAR included in the same EAR --------------------------------------------------------------------------------------------- Key: WFLY-2569 URL: https://issues.jboss.org/browse/WFLY-2569 Project: WildFly Issue Type: Bug Security Level: Public(Everyone can see) Components: Class Loading, EE Affects Versions: 8.0.0.Beta1 Reporter: Martin Kouba Assignee: Stuart Douglas Fix For: 8.1.0.Final See also EE.8.3 Class Loading Requirements. In the mentioned Arquillian test (servlet protocol) if a class from an EJB module tries to access a class from an RAR you get a NoClassDefFoundError. I also tried to place the class in the WAR with the same result.