Upgrade James to JDK17?

Hello guys,

Well currently James is based on JDK 11. Should we think about upgrading 
to at least the next LTS, JDK 17? (or why even not the current LTS, 
which is the JDK 21?) I saw it being asked by a community member on a PR 
a while ago (Antoine Duprat) and in our company, we would be glad for 
such an upgrade as well.

Might need a bit of work but the project could definitely benefit from 
it: records (finish the long verbose POJOs), pattern matching, better GC 
handling, etc.

Would other people be interested about it too? Is it a problem for some 
others in the community?

Rene.