Increase build environment requirement to Java 17 #1851
Description
While Maven plugins have started requiring Java 11 a while ago (e.g. Spotless 2.30+), some new plugins like bnd-maven-plugin have bumped the requirement to Java 17.
Most of our code is Java 17-ready, but we must update some of our tests that modify final private fields.
This is a blocker for apache/logging-parent#41.