Java / NLJUG

J-Fall 2022 – Sander Moelands – Realtime Warehouse Analytics at Picnic with TimescaleDB

Running a warehouse is a complex operation. Keeping an overview of an almost ant like colony which ensures a timely delivery to customers, combined with just-in-time product delivery by suppliers, requires solid operational insights. At a fast growing scale-up with highly automated processes, we can’t do without realtime, reliable and flexible metrics. In this session […]

msmelt

December 4, 2022

21

J-Fall 2022: Nataliia Dziubenko – I built my own JVM language. Here’s why and how

Have you ever wondered, what your compiled code looks like? What do these bytecode instructions do? What are all these JVM languages about? I was really curious about all this myself. That’s why I ended up building my own JVM programming language. I wrote the compiler in Java, using ANTLR for building the parse tree […]

msmelt

December 4, 2022

20

J-Fall 2022: Michael Krimgen – 8 Java quirks in 16 minutes

In this session we’ll look at 8 Java quirks that might be surprising at a first glance. First we’ll look at a code snippet with apparently “wrong” behaviour and then look at why things are as they are.

msmelt

December 4, 2022

18

J-Fall 2022: Urs Peter – Event-Driven Microservices = Microservices Done Right

Are you slowly getting this uncomfortable feeling that Microservices might have brought you more trouble than relief? Have your Microservices turned into a landscape of distributed monoliths, tightly coupled and tangled, where a failure of one service cascades to many others? Then it’s the highest time you get acquainted with Event-Driven Microservices that catapult the […]

msmelt

December 4, 2022

26

J-Fall 2022: Sven Peters & Helen Scott – The Hitchhiker’s Guide to a Great Developer Career

As developers, our job is to write great code, test code, deploy code, fix code, and even delete code, but nobody told us that there is much more to it if we want to have a great developer career. In this talk, Sven and Helen will share their successes and failures during their 20-year careers […]

msmelt

December 4, 2022

12

J-Fall 2022: Robert Scholte & Mary Gouseti – Open discussion: Premises and promises of code review

Are the code reviews always about hunting for mistakes or patiently waiting for someone to say LGTM? Have you ever wondered if this is really worth your time? You are not alone, we understand. There’s no achievement for making the most review comments and the value of code reviews is often overlooked. It doesn’t have […]

msmelt

December 4, 2022

17

J-Fall 2022: Sohan Dasgupta – GraphQL-ify your APIs

GraphQL is query language for APIs, but what are the advantages and how would one implement such in their microservices/APIs. In this session, I will go through the basics of GraphQL, different aspects of GraphQL and architecture of such APIs. There will be demo/live-coding on, how 4 different ways we can implement GraphQL for a […]

msmelt

December 4, 2022

19

J-Fall 2022: Bram Patelski – Security by Meme

Let’s make security fun again. With a pile of memes, I will make you laugh and show you security can be easy and fun. Security experts are perfectly capable of scaring us with FUD: Fear, Uncertainty and Doubt. Horror stories of accounts hacked in seconds, Bank accounts and Crypto wallets drained, smart devices taken over […]

msmelt

December 4, 2022

19

J-Fall 2022: Julien Lengrand-Lambert -A gentle introduction to iPad driven development using Gitpod

Many of us still develop our applications mainly locally on our laptop. And still, we use remote CI/CD, remote test environments, and even temporary deployment branches. So why not go one step further and develop fully in the cloud? In this session, we’ll see how this becomes possible using Gitpod. We’ll dive into how to […]

msmelt

December 4, 2022

18

J-Fall 2022: Daniël Spee – So many results… Give them to me!

Usually when using search you request a subset of the results in the form of pagination. This is because users are mostly not interested in seeing all of the results, only the ones most relevant to them. But there are some use cases where your search service is used by other services or tools and […]

msmelt

December 4, 2022

32