What we're about

The Java platform and its ecosystem is more vibrant than ever. Brussels is a great city full of talent. 
Mix both, and you'll get the BruJUG, a local Java User Group where passionate Java developers can, for FREE, attend presentations given by passionate speakers.
Since 2010, a simple formula: an evening session with one (or more) speaker(s) on various tech topics, followed by a well deserved drink/meal in a pub nearby for anyone interested in following the discussion.

Our stage is open to technology experts, developer advocates, but also to any of you willing to share parts of his/her knowledge with the crew.

Stay in contact on Twitter: @BruJUG

Do you want to come for the first time, but worry to be lost and alone in the crowd? No problem, just drop us a nice (private) mail/message and we will take care of you, and we promise to make it as nice and pleasant experience. 

Registration to events is requested since seats are limited.

Upcoming events (1)

Test your microservices effortlessly with Micronaut Test Resources

HE2B - ESI - Ecole Supérieure d'Informatique

Hey folks!

We have a nice gift for you to wrap this year properly, a great session by Cédric Champeau on Micronaut! 🎉


Micronaut is a modern, JVM-based, full-stack framework for building microservices or serverless applications easily.
Because of its emphasis on ahead-of-time compilation, it integrates particularly well with GraalVM, pushing the limits of what can be done with the Java language.

However, modern application development also means multiple integrations that are sometimes difficult to configure. For example, your application may need a database, a Kafka server, an MQTT broker or other. Micronaut Test Resources greatly simplifies the development of such applications: without any configuration, it is able to start test containers during development or testing, greatly reducing the effort needed to achieve excellent developer productivity.

In this session, we will show the basics of a Micronaut application and how it integrates, in particular, with build tools and Testcontainers.
Micronaut Test Resources is also an extensible framework, making it relatively easy to add your own test resources: it is for example possible to expose a Docker container with a few lines of configuration. As a last resort, it is always possible to implement your own test resources.

Finally, it is interesting to know that Micronaut Test Resources is designed so that test resources can be shared between different projects, even if they use different build tools! As an added bonus, we will show how native images can benefit from this mechanism.

About the Speaker:

Cédric Champeau works for Oracle Labs, in the GraalVM team and in particular on the Micronaut framework. He is specialized in developer productivity and maintains among others the official GraalVM and Micronaut plugins for Gradle and Maven.
He has worked for Gradle Inc. for several years on dependency management and other developer productivity issues.
A former contributor to the Groovy language, he implemented its static compiler.
Outside of computing, Cédric is an astronomy enthusiast.

Past events (62)

This is not a BruJUG event

HE2B - ESI - Ecole Supérieure d'Informatique

Photos (214)

Find us also at