J2EE Servlets and Cookies

I'm having trouble with session management (Apache 2 + WAS keep killing my sessions, likely due to my lack of understanding of how to configure the latter). I don't have time to resolve this.
What I'm going to do instead is use the old standby, cookies, to manage sessions. The problem is, I don't know how to do that either. Could someone point me to a good online tutorial on the subject? I've used a few google searches without any luck (course ads only).
Lest I sound like a complete incompetent, I should mention that I am skilled with J2SE (been using it since before it was called that) and have a basic understanding of J2EE.
thanks,
Andrew

Whereas I haven't used cookies myself, I believe the mechanism is pretty streight forward...
Here is the API for J2EE: http://java.sun.com/j2ee/1.4/docs/api/
There are three places you will need to look.
1) The javax.servlet.http.Cookie class.
If you want to create a cookie, you will have to make an instance of this class, then use the appropriate set methods. When reading an already stored cookie, use the get methods...
2) The javax.servlet.http.HttpServletRequest interface provides the means of retrieving cookies from the user's machine via the Cookie[] getCookies() method.
3) The javax.servlet.http.HttpServletResponse interface provides the means of adding a cookie to the user's machine via the void addCookie(Cookie c) method.

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