2018
Ritter - 55 New Features in JDK9
https://www.infoq.com/presentations/55-new-features-jdk-9
Horstmann - Java 9 The Good Parts
https://www.youtube.com/watch?v=_cvgg9szPH8
https://downloads.contentful.com/oxjq45e8ilak/2s5MGeyxUYYkKKyyswaO4g/c23bb60468136f8a050124fbb6fd8e4a/CayHorstmann-Java9.pdf
Mak - Migrating to Java 9 Modules
https://www.infoq.com/presentations/java9-modules
Advanced Support for Java 9 Modules in IntelliJ IDEA 
https://dzone.com/articles/advanced-support-for-java-9-modules-in-intellij-idea
2017
http://kto.so/2017/09/30/the-practical-truth-about-multi-release-jars/