about
the event

jOnConf is the Java conference connecting all Java specialists around. We believe that sharing knowledge and learning from the most distinguished professionals in the Java industry helps us all become better professionals. With 10 speakers, live streaming and 1 workshop we are set to explore what’s new in  the world of Java. Join us to catch up with the latest trends, tips and tricks and discover the best practices and insights from the daily work of Java Experts.

Meet our renowned speakers from around the world, learn from them and get inspired to achieve more without leaving your living room. 

When

Friday
14th October, 2022

Online

Live streaming at Streamyard,
registration is mandatory.

Who

Java Gurus
Everywhere

why
join us

Community

The new hybrid communication makes it easier to create online communities. jOnConf connects you with like-minded Java experts who will help you push your professional boundaries and master your tech talent.

Keep Learning

In the fast-paced programming industry, staying on top of tech trends is always a challenge. By becoming a jOnConf-er, you can expand your knowledge by learning from industry leaders with rich hands-on experience.

High Level Speakers

jOnConf speakers are Java Experts, proven specialists from Forbes 500 companies, CEOs, CTOs and CIOs. People from all around the world, who will share their insights and Java tips & tricks.

meet
our speakers

See the speakers live on stage!

jOnConf 2022 is an  event with a carefully curated audience. You are more than welcome to submit your application.

Registration

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    Dmitry Alexandrov

    Java Champion, Oracle Developer Champion, Duke choice award winner 2018 for BGJUG

    Holly Cummins

    Java Champion, Senior Principal Software Engineer @ Red Hat

    Vladimir Dejanovic

    Founder and leader of AmsterdamJUG, Sr Director of Engineering at PVH

    Otavio Santana

    Java Champion, Software Engineer, Architect, and Open Source Committer

    schedule
    details

    Event
    October 14, 2022
    9:00 am - 10:00 am
    Streamyard

    Tradeoffs, Bad Science, and Polar Bears – The World of Java Optimisation

    Holly Cummins
    Java Champion, Senior Principal Software Engineer @ Red Hat

    Welcome to the Java optimisation jungle. Why can’t we “just make it go faster”? It turns out, in most cases, we need to first work out “faster for whom?” and “why do we want to go faster?” and “what even is faster?” This talk introduces the basic principles of optimisation, before bouncing through the pitfalls of optimisation; why the exact same techniques which make Quarkus rocket-fast used to be a terrible idea fifteen years ago, why fast benchmarks make for slow programs, and why even though it can be easy to get wrong, optimisation really really matters. Along the way we’ll talk about measuring things, bad advice, garbage collection, and climate change.

    10:00 am - 11:00 am
    Streamyard

    Why do we teach developers to hate Java?

    Cameron McKenzie
    Software developer, Java enthusiast, Editor-in-Chief

    Stop teaching devs to hate Java! We're teaching programmers to hate Java. And it has to stop. Java has changed over the past 25 years. So have teaching methods. So why do we subject new developers to long outdated learning tropes? In this session Cameron McKenzie will show you everything that's wrong with how the industry promotes Java, and what we need to do to fix it.

    11:00 am - 1:00 pm
    Streamyard

    Make your life easier with Jakarta's new persistence features: Data and NoSQL

    Otavio Santana
    Java Champion, Software Engineer, Architect, and Open Source Committer

    Persistence is the soul of modern architecture. It is a way to have a state in the stateless application, mainly in distributed systems such as microservices and cloud age app style.

    We handle various persistence sources such as SQL, NoSQL, or even web services. With a considerable amount of options or flavors, how can we have a business away from these details or have a loose couple between the application and the persistence engine?

    This presentation will discuss the new trends in the modern persistence model around enterprise architecture.

    1:00 pm - 2:00 pm
    Streamyard

    How to kill a Monster in Four Steps

    Vladimir Dejanovic
    Founder and leader of AmsterdamJUG, Sr Director of Engineering at PVH

    We all heard the stories of the Monsters, some legacy application somewhere in our company, no one knows where it is or dares to touch it, while the whole company depends on it. Unlucky ones had to face it. It took the hope and joy of countless brave engineers that took it on. However from time to time there is a legend, spoken only in whispers, of brave Heroes who not only took the Monster out of its dungeon to the light, but also managed to kill the monster and bring light and joy back into the lives of engineers.
    Join me in this talk as I take you on one of this legends and break down in detail how these brave heroes managed to kill the monster in four steps. How we moved from on prem legacy application and ended up in haven, cloud, and microsevices build in latest and greatest tech.
    Beside gaining insight into tips and tricks that we used, you will also learn what to do in similar situations, and very importantly how to help your company,team and yourself not to end up having monsters, again.

    2:00 pm - 3:30 pm
    Streamyard

    Reactive vs. Blocking with Helidon (Nima)

    Dmitry Alexandrov
    Java Champion, Oracle Developer Champion, Duke choice award winner 2018 for BGJUG

    Helidon is a brave, small but powerful open source framework for writing microservices. And if you need to get the maximum performance – making your apps reactive is currently the best way to do it! In this session we will dive deeper and see how to create extremely performant reactive microservices with Helidon SE flavor. Since Helidon has its own powerful Reactive Engine, we will learn how to get the most requests served in async operations and Messaging. But the game changer Project Loom is already here, and Helidon supports it out of the box. More than that – Helidon Nima – a blocking microservices framework has just been released! It is an industry gamechanger! We will make a live comparison which is better – the hard reactive approach, or regular blocking code optimized with Loom!

    3:30 pm - 4:30 pm

    To be confirmed

    To be confirmed

    Panel Discussion

    Dmitry Alexandrov
    Java Champion, Oracle Developer Champion, Duke choice award winner 2018 for BGJUG
    Cameron McKenzie
    Software developer, Java enthusiast, Editor-in-Chief
    Vladimir Dejanovic
    Founder and leader of AmsterdamJUG, Sr Director of Engineering at PVH
    Otavio Santana
    Java Champion, Software Engineer, Architect, and Open Source Committer

    hurry up!

    Last year our tickets sold fast so don’t miss. Conference will start in

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    pricing
    plans

    FREE -1
    • Access to all Streamyard rooms
    • Access to jOnConf Slack
    • Workshops
    Registration

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