ruppert

Kids Math and Writing Trainer App 2026: Fun JavaFX Learning Tool for Young Coders

A core java lib for the functional reactive coding ... JDK only

Generator for generating a bunch of developer docker images

A solution for a Vaadin developer environment, based on Docker, Gitea, Drone.io, Selenoid,..

Dynamic Context Dependency Injection

A base implementation for a microservice

There are a lot of reactive frameworks in the field, some with functional languages for the JVM. But since Java8 we get both aspects with the JDK. But how you could combine this and use this without adding the next big framework to your project? We will have a Core Java journey to explore a lot of nice possibilities based on the the JDK.

How to deal with nested Layouts / ParentLayouts in Flow

A Nano Vaadin app, running on kotlin and jetty - FAT JAR

Vaadin Flow - HelloWord with maven and Apache Meecrowave

Talk: Hidden pearls for Java High-Peformance-Persistence

A nano project to start a Vaadin project. Perfect for Micro-UIs packed as fat jar in a docker image.

Nano Vaadin 14 App, based on Kotlin

Security Framework

Constructor Value versus Observer

How to use Vaadin together with a Amazon S3 Compatible Cloud Storage

Artikel in JavaMagazin about Testcontainers