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Oracle® Containers for J2EE Enterprise JavaBeans Developer's Guide 10g Release 3 (10.1.3) B14428-01 |
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# Packaging an Application with Both EJB 3.0 and EJB 2.1 EJBs

You can combine both EJB 3.0 and EJB 2.1 beans in your application. For example, you could have an application that contains three annotated EJB 3.0 entities without `ejb-jar.xml`, two EJB 2.1 entity beans with `ejb-jar.xml`, and three EJB 3.0 session beans with `ebj-jar.xml`, annotations, or both (in which case, the `ejb-jar.xml` overrides the annotations).