On 6 september 2022 the BrabantJUG will host it’s second meetup! And we have 2 great speakers lined up for you. Joep Weijers will tell us about how Microservices are the cause of Dependency Hell 2.0 and Jan Ouwens will tell us about Fantastic Languages and what to learn from them, and Building a bullshit language. Our amazing host for this meetup will be TOPdesk in Tilburg.
The meetup will be held at TOPdesk in Tilburg, Burgemeester Stekelenburgplein 199, 5041 SC, Tilburg
Timetable:
17:00 Doors open
18:00 Food
18:50 Introduction
19:00 Microservices are the cause of Dependency Hell 2.0 by Joep Weijers
19:45 Break
20:00 Fantastic Languages and what to learn from them and Building a bullshit language by Jan Ouwens
20:45 Drinks
Joep Wijers
Developer Experience Engineer at TOPdesk
Joep is a Developer Experience Engineer at TOPdesk with a keen interest in delivering quality software continuously. He loves playing around with Jenkins Pipelines, GitLab, Selenium, Ansible, Docker, Kubernetes and keeps in touch with his inner developer by educating his colleagues on testable Java code.
Microservices are the cause of Dependency Hell 2.0
At the moment the programming community finally figured out how to do proper dependency management using Maven, Gradle or NPM, they found a new way to shoot themselves in the foot: microservices. You are correct in thinking that smaller applications typically have less dependency conflicts. But we now have a new, higher level of dependencies: those between microservices. How can you keep track of these dependencies? And more importantly, how can you stay in control?
And this is not the only new challenge. The carefully crafted tooling to ensure for example dependency convergence in your monolith has to be ported to your microservices build pipelines. And what to think about vulnerability scanning or license compliance? A Docker image has more dependencies than it seems at first glance.
In this talk I’ll discuss Dependency Management Best Practices and show how the lessons we have learned from ye ol’ monolith days apply to microservices. Join me if you don’t want to end up in Dependency Hell 2.0!
Jan Ouwens
Senior developer, trainer, and speaker at Yoink
Jan is a senior developer, trainer and speaker at Yoink in the Netherlands; he is interested in back-end systems, functional programming and languages. He has worked in various fields, such as banking, retail, law enforcement, transportation and electron microscopy, but he is perhaps best known for being the author of EqualsVerifier, a tool that rigourously tests Java’s equals and hashCode methods in a single line.
Fantastic Languages and what to learn from them
PHP sucks! C# is just a Java rip-off! Kotlin is better than Java! English is just weird!
Wrong.
Every language is cool and unique in its own way and will influence the way you see and use your own favourite language. Put aside your preconceptions, and let me show you what I have learned from working with Java, Ruby, Elm, and yes: even PHP.
Building a bullshit language
I have created AnnotationScript, a programming language whose syntax is expressed entirely in Java annotations. Yes, you read that right: Java annotations.
WTF!?
The pandemic lockdowns of 2020 did strange things to people. Some people started learning the guitar. Others decided to get in shape. But not me. I decided to take Java annotations to their logical extreme.
I think annotations are over-used in the Java ecosystem: you can use them for dependency injection, handling HTTP requests, and interacting with databases. You can even use them to generate code in various ways. But for some reason, nobody has actually used them to implement a full-blown, Turing-complete programming language. Until now.
Do you want to know how easy it is to actually implement LISP? Do you want to know how easy it is to recursively implement LISP in the LISP you just implemented? Do you want to know about the weird restrictions that Java annotations have?
You will be amazed. Weirded-out and amazed.