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J-Fall Virtual 2020: Duncan Bloem – Migration strategy from (10-15yr) old Java-EE app to modern cloud native apps

10 to 15yrs ago, ABN begun leveraging internet banking. Many (thousands) of web-app were written in java-ee style, deploy on IBM Websphere clustered machines. Remote EJB2 and JNDI was the prefered way to create small and flexible applications. Everything was focussed to _prevent_ deployments at all costs. Because of the long deployment cycle. Nowadays, we […]

msmelt

December 8, 2020

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J-Fall Virtual 2020: Josh Long – Keynote: Cloud Native Java, Redux

Join Spring developer advocate Josh Long (@starbuxman) for a guided tour to a ton of the features, patterns and principles that support you when building productions-optimized cloud native Java applications. Bio Josh: Josh (@starbuxman) has been the first Spring Developer Advocate since 2010. Josh is a Java Champion, author of 6 books (including O’Reilly’s “Cloud […]

msmelt

December 8, 2020

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J-Fall Virtual 2020: Roy van Rijn & Roy Braam – 30 minutes of Failure

This talk will be filled with failure. Innocent failures, funny failures, small failures, but also failures that took out an entire online banking system for hours. Failures made with a single click and elaborate failures that took months of preparation. There is nothing better than gloating about mistakes and learning from them. Failure often comes […]

msmelt

December 8, 2020

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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 […]

msmelt

July 2, 2018

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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 […]

msmelt

November 12, 2018

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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 […]

msmelt

November 12, 2018

96

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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 […]

msmelt

November 12, 2018

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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 […]

msmelt

November 12, 2018

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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 […]

msmelt

November 12, 2018

163

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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 […]

msmelt

November 12, 2018

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