EasyBeans is an open source implementation by ObjectWeb of the EJB3 container specification.
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The deployment descriptors are no longer required; everything can be accomplished using metadata annotations.
The CMP (Container Managed Persistence) has been simplified; it is now more like Hibernate or JDO.
Programmatic defaults have been incorporated. For example, the transaction model is set to REQUIRED by default. The value needs to be set only if a specific value other than the default value is desired.
The use of checked exceptions is reduced; the RemoteException is no longer mandatory on each remote business method.
Inheritance is now allowed; therefore, beans can extend some of the base code.
The native SQL queries are supported as an EJB-QL (Query Language) enhancement.