Vaadin Blog
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Update your Vaadin 8 project to Java 11 and GWT 2.9.0
Vaadin 8 was originally built and designed when Java 8 was the newest and the coolest. You can see this in many parts of the API. For example, we use lambdas to implement listeners that only have one method, and use Optionals and Streams here and there. Vaadin 8 also uses GWT 2.8.2, which allows ...
Introduction to load testing with Apache JMeter
Load testing allows you to simulate multiple users interacting with your application. This allows you to experiment with a real-world load on your application and understand its behavior under different levels of stress. In this article, I'll show you, step by step, how to run load tests on a ...
UI Modernization with Vaadin
In this article, I share my experience in business application modernization and some of the key findings on migrating a complex Oracle Forms application to a modern Java-based web application implemented in Java with Vaadin. This article is based on my talk at DawsCon 2021: From low-code to ...
Top 25 Vaadin add-ons of 2020
The Vaadin Directory serves as a marketplace for add-ons and web components for your Vaadin applications. It’s a community-driven effort that includes integrations of other components, modifications to existing Vaadin components, or creations of additional features from scratch that are maintained ...
Performance testing a Vaadin application: Part 4 Gatling
Gatling is a free, open-source performance testing tool. It was first released 2012 and has since gained in popularity. In addition to its free tools, Gatling offers a wide range of (commercial) professional services. Gatling is mainly implemented with the Scala programming language (as opposed to ...
Submitting a PWA to Google Play Store using Bubblewrap
Published in 2021. Last updated in 2026. This tutorial shows how you build and submit your progressive web application (PWA) to the Google Play Store. We use the PWA from our Modern Web App tutorial series as an example and wrap it as a Trusted Web Activity (TWA) using the Bubblewrap CLI by Google ...
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CGI automated routine tasks in social and health care
ITTE is a self-service solution for health and social care. The solution enhances and automates customer registration throughout the customer journey and provides information and guidance. The solution automates the routine tasks of professionals, allowing them to focus more on their core tasks. ...
Vaadin online training courses and certifications are now free
To end 2020 on a positive note, we are happy to announce a free gift for all Vaadin developers. We are unlocking all our online training courses and certification exams, and making them available for everybody for free. All registered users of our website can now access our previously-paid training ...
Performance testing a Vaadin application: Part 3 Apache JMeter
JMeter is one of the most popular performance testing tools. First released at the end of 1998, JMeter became the default choice for many companies needing to measure the performance of their software. In 2016, it was estimated that half of all companies performing load tests used JMeter. It is ...