Reduce the size of your Java run-time image

Day 1 | 14:30 | 00:25 | UD2.208 (Decroly) | Severin Gehwolf

Note: I'm reworking this at the moment, some things won't work.

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When it comes to the on-disk-size of your OpenJDK installation it becomes apparent that certain files take up a large part of the entire Java Development Kit (JDK) installation. It can seem that certain files are monolithic and aren't possible to make smaller. Yet, they can be smaller if you know how.

In this talk we show how you can create a custom run-time image for your specific application without the need of the jmods folder otherwise being present in a standard JDK. Forget about JRE and go all-in on custom run-time images. The best thing about it is that - due to JEP 493 - this will no longer need JMOD files of the JDK to be present.

Tune in to hear more about using jlink from a JDK without a jmods directory and what new opportunities this allows.