help: Co-hosting multiple versions of J2EE applications

[Keshav Kode <keshav.kode@xxxxxxxxx>]

Hello Cinjuggers,

Our team is working on a J2EE application (almost 50% thru). We just
found that we might have to support multiple version of an application
at a same time. We do not have luxury of having separate application
server for each test version, as our infrastructure team is not
interested in maintaining configuration for application server for
each version. Our functional and load testing environment is WAS 5.0.2
under iSeries-AS/400.

We considered using VMWare, but it doesn't support iSeries. We found
one articles (listed below) talking about Co-hosting conflicts and
issues. The suggested solution will potentially  involve lot of
refactoring and configuration changes.

What is the right way to do it? Is there any tool/plug-in available
that will enable existing J2EE application for Co-hosting multiple
versions? Any suggestion/pointers will be greatly appreciated.

Thanks in advance for your help,
Keshav.
Keshav.Kode@xxxxxxxxx

IBM WebSphere Developer Technical Journal: Co-hosting multiple
versions of J2EE applications:
http://www-128.ibm.com/developerworks/websphere/techjournal/0405_poddar/0405_poddar.html