Java / NLJUG

551 Videos

J-Fall 2016 Speaker Pascal Snippen & Rene Boere – Quintor Keynote: Mindblowing: 40+ node PI cluster

Met een Raspberry PI kan alles toch? Dat dachten wij ook. Dus besloten we het grootste Java gebaseerd overheids IT project te porten naar een 40+ node PI cluster. Dit is geen simpele demo applicatie maar deze applicatie wordt gebruikt door meer dan 1 miljoen gebruikers en heeft de gebruikelijke hardware en software requirements dat […]

J-Fall 2016 Speaker Tom Eugelink – One application to rule them all

Wouldn’t it be nice if we could write a mobile app and a desktop app with a single code base. Yes, of course there are HTML based solutions, and they work as well, but maybe you also find developing in HTML, CSS and JavaScript just frustrating as I do. I want to work in an […]

J-Fall 2015 Speaker Rene Boere, Pascal Snippen & Arjen Wassink – Continuous Delivery

Deze sessie is een verdieping van de keynote en doet uit de doeken hoe wij ons cluster ingericht hebben, inclusief de technische details. Met live demo’s tonen wij hoe principes en technieken werken. Zo zul je zien hoe wij in staat zijn met Git, Bamboo, Docker en Marathon, geautomatiseerd microservices uit te rollen op ons Mesos […]

J-Fall 2015 Speaker Rene Boere & Pascal Snippen – Pushing the limits of Continuous Delivery

Containers, cloud platformen, Service Discovery en Continuous Delivery zijn technologieën die zich momenteel razendsnel ontwikkelen. We passen allemaal al jaren Continuous Integration gecombineerd met unittesten toe in onze projecten. In deze sessie geeft Quintor haar visie hoe we Continuous Integration de komende jaren zien evolueren naar een Continuous Delivery omgeving op Web-scale formaat, gebruikmakend van […]

J-Fall 2016 Speaker Peter Hendriks – RxJava from the Trenches

RxJava maakt het mogelijk om gemakkelijk schaalbare code op een reactive manier te schrijven. Het kan echter ook een uitdaging zijn om de code leesbaar te maken, en kunnen debuggen wat er gebeurt. Deze sessie beschrijft onze ervaringen met het inzetten van RxJava als basis-onderdeel in onze codebase: een suite educatieve applicaties voor basis-, voortgezet- […]

J-Fall 2017 Speaker Nsemeke Ukpong – Configuring Kafka Producers for Stream Processing

If you are like me, the Big Data wave has finally caught up to you. There is no escaping it and in truth (I can attest)with the way that ING is embracing it, it is a pretty interesting place to be! So the question is, where do you start? This session will provide the introduction […]

J-Fall 2015 Speaker Marc Evers, Rob Westgeest & Willem vd Ende – Property Based Testing, By Example

Most unit/integration testing as we know it is example-based: we describe examples of how the code under test behaves in our favourite testing framework. Property based testing is a new and promising approach to automated unit testing. It is very different from example-based approaches: in property based testing, you don’t write examples but you describe […]

J-Fall 2015 Speaker Jakub Marchwicki – What is code?

That sounds like an easy-to-answer question. A set of Java / Ruby / C# / Scala / Whatever tokens you mashup together everyday to get the business happy, right? If you are in the business long enough you know there are rules, there are means to keep you code clear, nice, readable. You know to […]

J-Spring 2018: Siren Hofvander – Making cookies healthy. Security in a web based world

Our world has grown more complicated since cookies were first baked into web browsers as a way around state-based obstacles and sessions. In the intervening years they have held everything from unsecured administrative credentials to language preferences and even our window scroll location. But while the wild-west years of plaintext credential storage are hopefully over, […]

J-Spring 2019: Berwout de Vries Robles – Impromptu Orchestra with HTTP2 and Reactive Streams

With the introduction of HTTP/2 in 2015, Server Sent Events have received a new life as Reactive Streams. In this talk we will look into how these technologies work. We will look at how and why HTTP/2 came to be. I will show you what you need to do to make practical use of HTTP/2. […]