Summary: Project Jigsaw, G1 as default garbage collector, ahead-of-time compilation, Stack Walking API and many more changes that you should be aware of when upgrading to Java 9. Philipp Lengauer, whom we met at devone.at, gives us all the answers and technical deep dive into all these JVM changes. Especially for performance engineers an episode worth while listening to.<br>If you want to learn more check out Philipps presentation at devone:<br><a href="https://youtu.be/Nsg_rhlf4_U?list=PLfi6VUNSzNYmUyeZ2BTM_WmZjgi0FOqRl" rel="noopener">https://youtu.be/Nsg_rhlf4_U?list=PLfi6VUNSzNYmUyeZ2BTM_WmZjgi0FOqRl</a>
