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 ...
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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 ...
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Why do developers use Java in 2021?

Our previous post took a snapshot of the history and current state of Java: Who made it? How many developers does it have? What are they using Java for? This post takes a look at some of the reasons why Java has gained and retained its popularity for over a quarter of a decade. You can use Java for ...
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The State of Java

Java is one of the most popular programming languages, especially for enterprise applications. This post takes a brief look at its long history and where it is today. 25 years of Java The Java Development Kit (JDK) 1.0 was designed by a team lead by James Gosling and released at Sun Microsystems in ...

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 ...
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Web performance webinar with Tracy Lee

We kicked off this year with a webinar presentation on improving web application performance by Tracy Lee. Continue reading for the highlights and an overview of the presentation or watch the full recording on Youtube.   A big Thank You to Tracy Lee for holding this webinar!  Who is Tracy Lee? ...

Vaadin Challenge: Get certified and win a Vaadin t-shirt

In the past, access to our video training courses and certifications was included in the Plus tier. We decided to unlock them all and make them available for free in the Core tier. Now, we’re challenging our community members to get certified in Vaadin 14, our latest LTS version. How the challenge ...
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Using Vaadin 14 with Liferay - what works, what doesn't?

Liferay has advocated strongly for OSGi lately. And we have lagged behind with this. Our plan was to look into Liferay support for Vaadin 14 after getting OSGi compatibility for npm done. But not every Liferay user needs OSGi. You can already build Vaadin 14 portlets today! Create Liferay portlets ...