I CODE JAVA AFRICA
JBiltong Day – Online Event
13 February 2025
I CODE JAVA
I Code Java Conference was held between 13February2025. ICJ has always been a community driven event which focusses on coding, architecture and developing leadership skills. Developing a strong fundamental skillset to further your career.
13February2025 Speakers
SCHEDULE – JBILTONG DAY
Online
13 February 2025
- Track 1
- Track 2
12:00 - 12:40
IntelliJ Super Productivity in 45 Minutes
In 2003, Heinz was asked to fix bugs and add features to a bowl of spaghetti code. It was a dismal task. He had heard of IntelliJ IDEA's supernatural analyzing powers. At the end of his 30 day trial, he purchased his first IntelliJ license. Often after his talks, instead of asking about the topic he spoke about, curious onlookers wanted to know how he had performed his IntelliJ magic. Here are your answers.
Dr Heinz Kabutz | Java Champion / Author
12:40 - 13:20
Exploring cutting-edge models: LLMs, SLMs, local development and more
Today, there are many Generative AI models to choose from: Large Language Models (LLMs), Small Language Models (SLMs), proprietary models, open models, models in the cloud, models on devices, text models, code models, image models, and multimodal models. In this session, we'll provide guidance to help you choose the right model to fit your needs, and tools you can use to evaluate and compare models for your specific tasks. BUT WAIT THERE MORE: Along with the video of the presentation, this session will link to all the assets you need to successfully present on the topic including PowerPoint slides and demo instructions & code!
Rory Preddy | Principal Cloud Advocate
13:20
Break
13:40 - 14:20
Approach to writing a search algorithm to process natural language using artificial intelligence
Abstract To be confirmed
Michael Levin | CEO and President
14:20 - 15:00
And if we create our own Web Framework?
In this session we'll have a look at how we can achieve this goal using a combination of well known Java stacks and libraries such as Spring AI and LangChain4j.
Professor Isidro, Ph.D. | Java Champion and Research Professor
15:00
Break
15:20 - 16:00
A Developer’s Guide to Jakarta EE 11.
Since its introduction in 2018 as Jakarta EE, the platform has evolved from: Jakarta EE 8, an open-source version of Java EE 8; to Jakarta EE 9, the "big bang" release; to Jakarta EE 10 that introduced the Core Profile. And now, Jakarta EE 11, released in December, 2024, focuses on productivity and innovation and delivers: updates to 16 specifications; introduces a new specification, Jakarta Data; and sets the baseline to Java 21, the latest LTS release. This presentation will provide a brief history of JavaEE/Jakarta EE, what's new in Jakarta EE 11, and a review of new and updated specifications with working example applications.
Michael Redlich | Lead Java Queue Editor InfoQ
16:00 - 16:40
This stupid multi-thread code isn’t working. I hate Java!
Let me step in here. Java is probably the most deterministic language ever. But reading the Java Memory Model specification is not exactly a walk in the park. Fortunately, I have a trick. Let's have a look together.
Henri Tremblay | Head of TS Imagine Canada, Java Champion and more
12:00 - 12:40
Java Language Pattern Matching Puzzlers
The goal of Project Amber within OpenJDK is to explore the inclusion of smaller, productivity-oriented Java language features. One part of this that has delivered new functionality in recent versions is pattern matching. Pattern matching combines application code logic to test if an expression has a specific type or structure and extract components of its state for processing. In this session, we’ll take several examples of pattern matching and pose them as questions, where sometimes, the results are not what you would expect. For each example, we’ll discuss the logic behind the code and how this could impact how you use these features in your code.
By the end of the session, you should have a greater depth of knowledge on how to get the most benefit from these Java language enhancements. It's said that context is king. This phrase has become more important in recent times thanks to the rise of AI and LLMs. LLMs are evolving faster and faster every month. However, trained models lag in knowledge regarding recent events as well as specific data pertaining to your business, specially those models trained externally. This being said, there are ways to enhance these models with additional context enabling them to deliver results custom tailored to your specific needs.
Simon Ritter | Deputy CTO of Azul
12:40 - 13:20
Java Developer Career Masterplan: 15 steps to grow beyond senior developer
What if you could devise a clear plan for your Java developer career, to reach senior levels and beyond? What if this plan could be built with the guidance and inspiration of some of the top players in the industry?
Search no more. The Developer Career Masterplan is a 15-step process to design your own masterplan. This is the exact plan used by Java Champions, Open Source developers, Developer Advocates, Distinguished Engineers, Community Managers and more to achieve success in their careers.
Join us in this interactive presentation, where we will work together on your plan. It is a unique opportunity to come away with clarity about your future and actionable steps to build the career you want.
Bruno Ferreira de Souza | Founder and Lead for SouJava
13:20
Break
13:40 - 14:20
Do you really need Javascript?
Single Page Applications (SPAs) have emerged as the de facto standard for modern web application development, with Angular, React, and Vue.js leading the pack. However, for Java developers, diving into the world of SPAs often means learning new programming languages and unfamiliar build environments, presenting a steep learning curve.
This presentation introduces an alternative path for Java developers: Vaadin. This well-established web framework enables the development of web applications entirely in Java while also accommodating the classic SPA approach. We will start with the architecture of Vaadin, shifting away from its previous reliance on GWT in favor of WebComponents, and then highlight the benefits and advantages of this framework.
Simon Martinelli | Java & Vaadin Champion, and Oracle Pro
14:20 - 15:00
Building AI powered applications with Java
It's said that context is king. This phrase has become more important in recent times thanks to the rise of AI and LLMs. LLMs are evolving faster and faster every month. However, trained models lag in knowledge regarding recent events as well as specific data pertaining to your business, specially those models trained externally. This being said, there are ways to enhance these models with additional context enabling them to deliver results custom tailored to your specific needs.
Andres Almiray | Java/Groovy Developer
15:00
Break
15:20 - 16:00
Practical Debugging at Scale: Do you really know how to debug effectively?
Most of us didn't learn debugging in Universities and just "picked it up on the job". That is shocking for such a crucial skill. The reason is sad, it's hard to test knowledge in debugging, but we can still learn it. Learn some debugger capabilities that most developers don't know about such as:
Shai Almog | Principle Engineer, Java Rockstar, Speaker and more
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