Resolution:
Description:
============
The Administrator session expires while exporting Trading Partners from BusinessConnect.


Environment:
==========
BusinessConnect 5.X.X

Symptoms:
=========
This exception occurs when attempting to perform an activity such as exporting a configuration (.csx export).  During an export, the Administrator session expires.

Cause:
=====
Caused by: com.tibco.ax.fw.cfg.factory.RepositorySessionException: Session already closed, cannot be used


Resolution:
=========
The timeout property in the web.xml file might be not sufficient for the activity . Try increasing the value so that the session does not expire.  The session timeout is in seconds.

You could find the following timeout property at

  administrator_home\domain\domain_name\tomcat\conf\web.xml

&ltsession-config>
        &ltsession-timeout&gt30</session-timeout>
</session-config>