The [Facter configurations in puppet-agent|https://github.com/puppetlabs/puppet-agent/blob/master1dbd7d46f9adcc0b90d93c51c856933c9e8f6ea3/configs/components/facter.rb#L44-L45] needs to be updated to build Facter for JRuby on redhatfips-8-x86_64.
The [Facter configurations in puppet-agent|https://github.com/puppetlabs/puppet-agent/blob/1dbd7d46f9adcc0b90d93c51c856933c9e8f6ea36.x/configs/components/facter.rb#L44-L45] on 6.x branch needs to be updated to build Facter for JRuby on redhatfips-8-x86_64.