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The Java Developer’s Approach to Web Bluetooth

The Web Bluetooth API is one of the interesting new technologies that the Google Chrome team has cooked up that further narrows the gap between web apps and “real” apps. It allows full access to Bluetooth devices straight from the browser. The ability to connect directly to various devices like ...
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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 ...

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 ...

Vaadin Roadmap 2022

Last Thursday, together with Leif Åstrand from our product management, we held a webinar about our roadmap. The idea for the webinar was sparked by the changes we recently did for how we work in our R&D teams. Work is now split into 6-week projects, which are chosen relatively close to the ...

Vaadin apps as native executables using Quarkus Native

JVM is a monster – in a good way. Its architecture and especially the super-optimized just-in-time-compiler (JIT) help Java byte-code apps to run at a performance that makes startups rewrite their entire software when they grow up. But this amazing piece of engineering doesn’t come without a price. ...
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Insights on Vaadin with Quarkus

Quarkus is an increasingly popular “container-first” Java framework by RedHat. Similarly to Spring Boot, there is no application server, but the server is part of your generated artifact. The first integration examples with Vaadin and Quarkus were written by Sven Ruppert early in the 0.x phase and ...
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Three tips to integrate your Vaadin app into your existing website

Nowadays, it is rare to implement all software with a single technology. There are different teams and requirements, which is a good reason to allow a certain amount of variance in the software toolkit. The same goes for UI frameworks, and that's the way it should be. Hosting static HTML files ...
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JWT authentication with Vaadin Flow - for better developer and user experience

JWT (JSON Web Token) is a popular way to handle authentication in stateless, browser-centric web UIs. Vaadin Flow runs its UI state and logic in the server memory – by design. Without that, Flow users couldn’t have the pure Java developer experience and simplicity they love. At first glance, it ...

A minimal zero-downtime deployment using nginx & Spring Boot

Starting Java web applications is not an instantaneous process. It is not rare to see tens of seconds for some applications to boot. Although you can get an almost instant startup time if you leave out Hibernate and run Quarkus on GraalVM, that’s not the reality we live in. During development, ...