According to the JAX-RS spec it should be possible to deploy a war with multiple application classes. While attempting to resolve
AS7-3199 I noticed that RESTeasy stashes some stuff in the servlet context, which then gets mixed up between the different servlets:
To see the code I am using to run this: https://github.com/stuartwdouglas/jboss-as/compare/AS7-3199 . MultipleApplicationTestCase fails randomly, depending on the order that that application is initialised.