Publish an official blessed and supported way of daemonizing processes. Yeah sure, you can use Apache commons-daemon and others of it's ilk. And it will work. But it will feel hacked together (at least it does to me).
2. Fix Dependency hell!
Publish a blessed / supported / standard of supporting / managing different classloaders. Java has this great mostly unused mechanism (classloaders) for managing dependency hell. It would be great to have platform (maybe even language) level support to make that easy to do and a standard way of building software.