Description: Testing EJB is different Container matters Enterprise Java Beans, or EJBs, cannot be tested on their own as can plain Java classes. There are additional steps to deploy them to an EJB container before they can be tested. This means that our testing process must include the additional process of deployment and re-deployment of EJBs. The deployment must be automated as well. There are some arguments on the differences between running the EJB test client inside.