EJB 2.0 module considerations

When using EJB 2.0 modules, keep in mind the following considerations.

Java EE 7 applications do not support 1.x and 2.x entity beans in EJB modules

EJB 2.x-level modules in Java EE 7 applications do not support the use of 1.x and 2.x bean managed persistence (BMP) and container managed persistence (CMP) entity beans. The EJB entity must be packaged in a Java EE 6 or earlier-level application inside an EJB 2.1 or earlier-level module.

Java EE7 applications that are packaged with EJB entity beans in any EJB modules fail to install.

Related:

Develop EJB 2.x enterprise beans