How We Migrated New Relic to Java 11 by Ben Evans

A real-world experience report of migrating a medium-sized production plant and development organization to a Java 11-first approach. This talk will describe how we took a Java 8-only plant and development environment and refreshed it to be Java 11 by default. We will cover: Overview of the New Relic environment and plant architecture Build tools and in-house developed plugins and tooling Migration to OpenJDK Repo cleanup Hunting regressions Problems and stumbling blocks we encountered Library upgrades and complex interdependencies  Improvements and how we measured them Our future roadmap Ben Evans is an author, speaker, architect and educator. He is currently Principal Engineer and JVM Architect at New Relic. Previously, he was a co-founder at jClarity, a performance tooling company and before that was Chief Architect for Listed Derivatives at Deutsche Bank. Ben served for 6 years on the Java Community Process Executive Committee, helping define standards for the Java ecosystem. He is a Java Champion, 3-time JavaOne Rockstar Speaker and the Java / JVM Track Lead at InfoQ. Ben is author of “The Well-Grounded Java Developer”, “Java: The Legend”, "Optimizing Java" and the new editions of “Java in a Nutshell”. Ben is a regular speaker and educator on topics such as the Java platform, systems architecture, security, performance and concurrency at conferences all over the world.