We have our business application on following tech stack
1. jdk 1.5_22
2. struts 1.1
3. shared jboss
We are planing to change our jre on the shared jboss to version 1.6. I have never upgraded any application earlier and want to know if is there any checklist or any one of us had done this earlier
so that I can get some knowledge before I move forward. Also want to know will it be any impact as we are using older version of struts framework do we need to use the latest version of struts too.