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Kotlin and Vaadin for productive and fun web app development
Kotlin is a programming language that has gained much popularity over the last few years. Its concise and expressive syntax feels liberating compared to the verbosity of Java. Vaadin supports the Kotlin programming language through the Karibu-DSL library, which contains various extensions to use ...
Vaadin TestBench: How to stabilize tests in slow environments
Vaadin TestBench is an awesome tool for creating integration tests for your application, but it's not immune to the problems caused by general slowness in your test environment. You might be running low on memory or disk space, or you might be temporarily trying to do more things on your test ...
Prepare your add-ons for Vaadin 24
Hello, add-on authors! This is the Vaadin 24 and Spring Boot 3 period. Although Vaadin 24 has only been in the pre-release stage for a few months, users are already anxious to try out Spring Boot 3, so we anticipate that Vaadin 24 pre-releases will see more usage than pre-releases often do. ...
Renewing the Vaadin License Checker
For those using one of our commercial products, you may have encountered the license validation window at some point: When you click on it or log in to vaadin.com to verify your identity, the system is notified that everything is okay, and it goes away, allowing you to continue building your app. ...
Jakarta EE is becoming mainstream – Get ready for Spring Boot 3 and Vaadin 24
TL;DR: The Java enterprise application ecosystem at large is making a backward-incompatible leap from the javax.* namespace into jakarta.*. To use next-generation application frameworks like Spring Boot 3 or Jakarta EE 10 compatible application servers, you'll need to use the soon-to-be-released ...
Learn from the best – productivity tips from software architect Petter Holmström
Vaadin not only develops frameworks for building applications. We also develop actual applications. In all of these, we use our tools to some extent, but many deliveries by our Services department are fundamentally generic Java software projects, or consulting on them. This is probably the place to ...
Inheritance vs Composition in Web Components
As developers, we strive for efficiency – not only in our code, but also in the software development process itself. One way to achieve this efficiency is to avoid redundancy and prioritize code reuse, so that we do not end up reinventing the wheel. Two tools that we have in our arsenal to achieve ...
Hot-deploy your code – keep focus on your work
Time is money. Something that I still don’t get is that many Java developers spend a lot of it (time and money) while waiting to see their latest code changes in action. JVM is known for its great peak performance when serving large numbers of users, but our tooling isn’t by default that well ...
It’s time for hardware multi-factor authentication
Proper use of multi-factor authentication could stop most of the cyberattacks we see today, yet adoption remains low. Good security is usually at the expense of convenience, and multi-factor solutions that are easy to use are hard to implement. Fortunately, technology can be used to offset this ...
