Johan Janssen
Software architect at ASML
Leunen, The Netherlands
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Johan is working as software architect at ASML. He has been working for various demanding companies where rapidly delivering high-quality software was very important. Johan regularly writes articles and presents about various subjects, but mainly around Java. He spoke in 20 countries at more than 40 different conferences such as JavaOne, GOTO Amsterdam/Berlin/Copenhagen, Devoxx BE/UK/PL, JavaZone, J-Fall, Jfokus, JavaLand, Scala Days Berlin/New York. Johan received the JavaOne Rock Star and Oracle Code One Star awards.
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How sand and Java are used to create the world’s most powerful chips
We all use computer chips such as processors, memory and sensors in our daily lives. But how are they created? How did the chip creation process evolve and what future changes can we expect?
This session explains how computer chips are physically created by some of the most advanced machines on the planet. Did you know that these chips, nowadays, can contain more than one hundred million transistors per square millimeter?
Java software is used everywhere, also in the process of chip manufacturing. In my project at ASML we’re working on a relatively new analytics platform which is used to process the data from the machines. The application then visualizes the results in order to find issues or improvement areas. This information is used to change the configuration parameters of the physical machine in order to create more and better chips. I will explain, on a high level, how our applications look like and which Java technologies we use.
Java's Hidden Gems: Tools and Libraries
This session is a whirlwind tour of many lesser known, but very interesting, Java tools and libraries. We'll have a sneak peak at dozens of tools to improve security, builds, architecture, tests and other areas. After this session you'll surely have learned something new, which you can further investigate whenever you want to apply it.
Why and How to Upgrade to Java 21
Java upgrades are sometimes seen as difficult and many applications are still running on an older version of Java. This session describes Java's current six months release process and why applications should use a recent Java version. After that, I'll explain the challenges of upgrading and provide some useful tips to make the process easier.
Concrete examples (including solutions) will be used to show you what changed in which version of Java and how to handle the changes. After this session you're ready to upgrade your applications to Java 21.
Johan Janssen
Software architect at ASML
Leunen, The Netherlands
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