Java
Advent Calendar - 2025 - Filter & Search – Part 02
In the previous part, we looked at the implementation on the server side. This part is now about the illustration on the user page. The …
Vaadin
36 articles
EclipseStore
Introduction to the URL‑Shortener Advent Calendar 2025
December 2025 is all about a project that has grown steadily in recent months: the Java-based URL Shortener, an open-source project …
Design Pattern
How and why to use the classic Observer pattern in Vaadin Flow
1. Introduction and motivation The observer pattern is one of the basic design patterns of software development and is traditionally used to …
Java
What makes Vaadin components special?
From my experience, Vaadin has always stood out from other Java frameworks. Of course, it enables the creation of modern web UIs, but the …
Java
Part III - WebUI with Vaadin Flow for the URL Shortener
1. Introduction and objectives The first two parts of this series established the theoretical and practical foundations of a URL shortener …
Java
Connecting REST Services with Vaadin Flow in Core Java
1. Introduction Why REST integration in Vaadin applications should not be an afterthought In modern web applications, communication with …
Java
If hashCode() lies and equals() is helpless
A deep look into Java’s HashMap traps – visually demonstrated with Vaadin Flow. The silent danger in the standard library The use of HashMap …
Java
Creating a simple file upload/download application with Vaadin Flow
Vaadin Flow is a robust framework for building modern web applications in Java, where all UI logic is implemented on the server side. In …
Java
What is CWE-1007: Insufficient visual discrimination of homoglyphs for you as a user?
The world of cybersecurity is full of threats, many of which are surprisingly subtle and challenging to detect. One such threat is the …
Java
What are component-based web application frameworks for Java Developers?
Tapestry, Wicket, and Vaadin A component-oriented Java web application framework is a development framework that enables the construction of …
Java
Building More Complex Apps with Flow
In this part of the series about Vaadin Flow, I will show how I can create the basic framework for the graphic design of a work application. …
Java
Vaadin Flow - How to start
We will now create a new Vaadin Flow application step by step and create a basic framework for our own projects with this component-based …