Issue with Java WebApp

Hello,

First, some background.

We developed a Library Management System called Metamarc and use Java WebApp for the Circulation module.
This has been running successfully since Java 1.3 and up to Java 6 Update 17.

However, since Java 6 Update 18, the module does not work correctly, as illustrated in the attached document with screen captures of the correct operation with Java 6 Update 17 and the incorrect operation with Java 6 Update 18 and later.

We have been trying some some time to get an answer to this problem, but the purchase of Sun by Oracle has not helped.

We would be pleased to receive information on the changes in Java 6 Update 18 (and beyond) that could cause our WebApp to malfunction.

Thank you for any assistance.

Hi,

I think the information that you've provided doesn't help us to analyse your problem, because we do not have any idea what your program is doing wrong. Maybe you can provided us with some kind of error log produced by your application so that we know the real problem of your application.

Have run the webapp with apache in debug mode with Java 6 Update 17 and then with Java 6 Update 37.
With Update 17, the Status is retrieved, but with Update 37, get message "Retrieving loan details", and the app "hangs"
The output from debug doesn't seem different, but the results is!
Output with Java6 Update 17 is "metamarc.log.circapp.j6u17.pdf"
Output with Java6 Update 37 is "metamarc.log.circapp.j6u37.pdf"
Hope this will help?
Regards,