[needusername]

Good. I don't think anybody should use them and I hope nobody actually uses them.

If over a decade of doing Java on Linux has taught me anything then it is to avoid using anything Java related from any Linux distribution and instead "install" (unzip or untar) what you need yourself.

I don't see why Fedora needs to build their own versions of JARs instead of using the ones the projects builds. The only answer I heard is "this is how we roll". It seems like they have this one process built for C system libraries and try to use it for everything whether it makes sense or not.

The only exception I can think of is if you're on RHEL and want to use the RHEL Java because of the support contract.