Java EE (Java Enterprise Edition) General Discussion

I have a simple test jsp page that puts a string into the jsp session and then pulls it out from another page. This works fine when I test it from the j2sdkee1.3.1 environment. And when I copy the folder containing these two test pages into a standalone Tomcat 4.1.24 environment they also work fine.

However, if I copy the two test pages to an existing web app (where I actually want to use session state) in the tomcat 4.1.24 environment the session ID is always different when I go from page to page or refresh the same page. As a result the session is never persisted from one page/refresh to the next.

What's up with Tomcat!?