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Potiential Issues of Downgrading

Julien Grenier
Ranch Hand

Joined: Sep 01, 2005
Posts: 41
Hi All,
I got a J2EE application working with J2EE1.4, JSP 2.0,Servlet 2.4 ,Struts 1.2.7 which is running on Tomcat 5.0.x

and now I need to make it run on OC4J 10g
the current production version only support J2EE 1.3 (actually information on the oracle website is contradictory)
which only support (if I'm right) JSP 1.2 and Servlet 2.3

Now the question is :
How would you tackle this?
What are the main issues to look for?
Ulf Dittmer
Marshal

Joined: Mar 22, 2005
Posts: 41587
    
  54
Start by trying to compile everything against 1.3. That should give you an idea of what you're using that's not supported, and how much work it might be to correct. As for the JSP, just throw it on the server and see what happens. The developers should also be able to give you some clues what features they used that might be new.


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Roger Chung-Wee
Ranch Hand

Joined: Sep 29, 2002
Posts: 1683
Beware of sessionDestroyed method of HttpSessionListener, it's different in notifying when a session is invalidated.


SCJP 1.4, SCWCD 1.3, SCBCD 1.3
 
Consider Paul's rocket mass heater.
 
subject: Potiential Issues of Downgrading