JVM (Java Virtual Machine) Courses
Devoxx via YouTube The JVM and Docker - A Good Idea
Devoxx via YouTube Graal.JS - High-Performance JavaScript on the JVM
Devoxx via YouTube Life of a Twitter JVM Engineer - The Garbage Keeps Coming
Devoxx via YouTube Using JRuby - What, When, How, and Why
Ruby Central via YouTube Major Migrations Made Easy
Spring I/O via YouTube