J-Spring 201821 Videos

J-Fall 2018: Opening movie

J-Fall 2018 heeft ruim 1.500 Java professionals mogen ontvangen voor de beste sessies en workshops over Java in de bioscoopzalen van Pathé Ede. De dag startte met de early bird sessies, maar de echte opening begon met deze film. Alle lof voor de maker van deze film: Michiel van MediaTaal ( http://www.mediataal.com/ )

J-Spring 2018 aftermovie

J-Spring 2018 took place on the 31st of May at TivoliVredenburg, Utrecht. The NLJUG looks back on a very successful event with enthusiastic and constructive responses from the community! With over 500 visitors, 18 speakers including 8 Java Champions (!) and great quality content, it was a great day. Thanks to everyone who joined us […]

J-Spring 2018: Bert Ertman – Thinking about my doorbell

When the White Stripes wrote their song ‘My Doorbell’ back in 2005, they had no idea it was actually about this very presentation and MY doorbell. “Yeah, I’m thinking about my doorbell, when ya gonna ring it, when ya gonna ring it” And then what?! Well…then I want to ask it who is in front […]

J-Spring 2018: Bert Jan Schrijver – Angular for Java developers

Front-end development has evolved massively. New tools, libraries and frameworks are released every day. But how do you keep up with this as a Java developer? Which frameworks should you learn, and where do you get started? Angular is without doubt one of the most popular frameworks for building modern web front-ends. And one of […]

J-Spring 2018: Daan Keuper – Hacking the connected car

Car security is, not surprisingly, a hot topic; after all they are fast and heavy computer controlled machinery that nowadays come with all kinds of internet connectivity. So we decided to have a look at it. In this presentation, we’ll first cover some theory behind the IT-part of car architecture. We’ll discuss attack vectors and […]

J-Spring 2018: Daniel Bryant – Continuous Delivery Patterns for Modern Architecture and Java

Modern Java applications are moving towards component-based architectures, as seen in the mainstream embrace of self-contained systems (SCS), microservices, and serverless architecture. We all know the benefits of component-based architectures, but there are also many challenges to delivering such applications in a continuous, safe, and rapid fashion. Daniel Bryant shares a series of patterns to […]

J-Spring 2018: Emond Papegaaij – Hyperledger Fabric and Java

Blockchain is the hype of the moment. Seemingly everything gets better with blockchain and company values skyrocket when including blockchain in their name. Although many of these stories may have to be taken with a grain of salt, blockchain technology itself is a very interesting development. To find out more about the possibilities, we decided […]

J-Spring 2018: Erwin de Gier – The definite guide to reactive programming in Java

Everything is reactive. Your application reacts to the click of a button, an incoming message. But also to the result of a database query. Between these events, you want to process other tasks. Being reactive needs a complete approach. Let’s look at the state of reactive programming in Java. Which frameworks are available? Do we […]

J-Spring 2018: Frans van Buul & Christophe Bouhier – Choreographed architectures with Axon Framework

Traditional applications are built on an orchestration principle. There is a ‘conductor’ which initiates requests, collects the responses and provides the answer. An alternative is a choreography whereby no single person or group is instructed during the play. Every participant in the dance, knows what to do at which point in time. In Software, a […]

J-Spring 2018: Martijn Verburg – The Diabolical Developer’s Guide to Performance Tuning

The Diabolical Developer shows you the steps to take when you get that call at 0300 saying that your Java / JVM application is too slow. He introduces the Performance Diagnostic Methodology (PDM) which focuses on how to quickly hone into the root cause of a bottleneck and what steps you can take to fix […]