Grails Session Timeout

To increase or decrease the default session time-out in grails:

In your project folder, first execute (if you haven't execute this yet):
grails install-templates

After this, you'll be able to see your web.xml in [project folder]/src/templates/war/

Add / modify the code in web.xml

<session-config>
   <session-timeout>60</session-timeout>
</session-config>

I place the snippet above after my servlet-mapping. The value "60" is in minutes.

Tested on Grails version 2.03. Enjoy!