In the EJB container, whenever a J2EE application is started, a check is performed to see whether each Enterprise Bean conforms to the specifications of EJB. As a result of this check, if a J2EE application contains an Enterprise Bean that does not conform to the specifications, the J2EE application fails to start. At this point, an error message is displayed.

The EJB checking process runs at the following times:

• When a J2EE application is imported for the first time on a J2EE server and started.
• When the configuration of a J2EE application is changed (including changes by using the redeploy functionality) and then the application is started.
• When a J2EE server is started for the first time after upgrade installation.

If the J2EE application starts successfully at these times, the EJB check does not run during the subsequent start and stop operation of the J2EE application.