how to access session-param in weblogic

[crash.test.dummy]

i have this in my weblogic.xml

<session-descriptor>
<session-param>
<param-name>CookieName</param-name>
<param-value>JSESSIONID_myApp1</param-value>
</session-param>
...
</session-descriptor>

and I wanted get the cookie name from my (Struts Action) servlet
classes.

I can use javax.servlet.http.Cookie to get an array of data for
cookies, but I wanted to get the name directly from the weblogic.xml.

thanks.