Timeout of Stateful Session Beans is a functionality that monitors the time that has elapsed since the Stateful Session Bean was last accessed and uses a timer to delete the Stateful Session Beans not accessed from the client even after the elapse of the specified time. You can specify the timeout period in the EJB container. The Stateful Session Beans engaged in a transaction, however, are not deleted.

If a Stateful Session Bean that has been deleted due to a timeout is invoked, the following exceptions are thrown based on the type of the interface:

• In the case of a remote component interface
  Exception java.rmi.NoSuchObjectException is thrown.
  
• In the case of a local component interface
  Exception java.ejb.NoSuchObjectLocalException is thrown.
  
• In the case of a business interface
  Exception javax.ejb.NoSuchEJBException is thrown. If, however, the business interface inherits java.rmi.Remote, exception java.rmi.NoSuchObjectException is thrown.
  

The timeout settings for the Stateful Session Bean are specified as attributes (properties) of the Session Beans included in a J2EE application. For details on the settings, see 2.11.6 Defining in cosminexus.xml.