Running an application on Tomcat and when I access the servlet, it seems that 
the session Id is changing for each new request coming in (same client).

I added a system.out to display my session Id and we get a different one each 
time.

here is the exact sys out:
System.out.println("ControllerUtil:  aRequest.getSession().getId():  " + 
aRequest.getSession().getId());

We need to maintain the same session in order to retrieve the error codes that 
might be writtent to the session.

How does one have to go about to maintain the session info?