I have a machine running a legacy J2EE app. The code is not Maven-ized and it works with pretty old Java and Postgres versions. I have converted it to a VM in ESXI and I'd like to try to upgrade it to a modern, binary-compatible version of RHEL (Centos or Scientific LInux) and see if things would still work.
Where should I start? Am I being too optimistic with this one?
It's more of an experiment and I'm not doing it on a production machine. But given the OS is pretty old I am looking for a way to do this eventually.