Next Meetup

Java Modules and creating your micro-VM and The JDK beyond Oracle
Agenda 18:00 - 19:00 Social and food 19:00 - 19:40 Rory Preddy - Java Modules and creating your micro-VM 19:40 - 20:00 Corneil du Plessis - The JDK beyond Oracle Title: Java Modules and creating your micro-VM Facilitator: Rory Preddy This talk is critical for your ability to optimize your Java solutions, so join me, as we do a whirlwind tour of how to Minify your VM! Huge JRE images were a huge problem for packaging and deploying small and lightweight tools based on Java. Have you tried to reduce Java runtime images? You will be surprised how well that works. From JDK 9 a minimal image targeting desktops can be as small as 21MB! This is a huge improvement but how does this black-magic work? I will be wowing you with an overview of Java’s custom runtime image tooling and present an interactive demo on how to create a mini Java runtime image file. See how the new Java module system works with general patterns for developing and migrating your modular Java Cloud application. Title: The JDK beyond Oracle Facilitator: Corneil du Plessis Oracle recently released JDK 11 and announced it is not free for production use. What do we do now? Are we to start paying for running the JVM? We will be discovering the various options to consider when choosing a road forward. The Sponsor for the food and Venue is BBD. The Jozi Java User Group (Jozi-JUG) is dedicated to a harassment-free experience for everyone. Our anti-harassment policy can be found here (


1 Newtown Avenue Killarney · Johannesburg

    Past Meetups (121)

    What we're about

    The Jozi JVM User Group (Jozi-JUG) is a User Group which meets monthly on the last Monday of every month in and around the Johannesburg area.

    The Jozi JVM User Group is for those who are interested in physically meeting to discuss Java Virtual Machine languages and related technologies. Anyone is welcome, no matter where you live, age and skill level!

    For recruiters:

    Please, this is for those who program Java, NOT for recruiters, NOR staffers, NOR head hunters, career creators etc. While we do love what you do, this place is a sanctuary for us Java Developers.

    As a developer:

    Come to our monthly meetups, Volunteer to speak at our monthly meetups by contacting the committee, Write an article for the Jozi-JUG online community,

    Our goals are to:

    help grow the JVM community,

    learn from the vast array of knowledge and experience that there is in our community,

    help build skills that our country so badly needs,

    make friends with other Java developers and

    have fun

    If you think talking about Java and tech after hours is like working then this group is not for you. If you think programming in the coding zone is the highest spiritual state any human bean can obtain then you will feel right at home.

    The Jozi JUG is dedicated to a harassment-free experience for everyone. Our anti-harassment policy can be found here (

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