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Editorial Team
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Asked: 2026-06-02T06:19:15+00:00

Just wanted to know can i directly run the code which EJB code (adhering

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Just wanted to know can i directly run the code which EJB code (adhering to 2.1 specs) in a EJB 3.1 container of an application server?In an application server, are there different versions of the EJB container one adhering to EJB 3.1 specs and another to 2.1 specs.?

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  1. Editorial Team

    EJB 3.1 container should support 2.1 applications out of the box. This is explained in EJB 3.1 specification with following words:

    Existing EJB 3.0 and earlier applications must be supported to run
    unchanged in EJB 3.1 containers. All EJB 3.1 implementations must
    support EJB 1.1, EJB 2.0, EJB 2.1, and EJB 3.0 deployment descriptors
    for applications writen to earlier versions of the Enterprise
    JavaBeans specfication.

    Of course there is always some differences (features/bugs/different ways to understand specification) in implementations

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