At XDEV, many of our open-source projects start with a practical problem we encounter in Java development. The ChartJS Java Model is a good example.
Chart.js is a popular JavaScript library for creating charts in web applications. But Java developers often need to generate and configure these charts from the server side.
Our library provides a type-safe Java model for Chart.js. Developers can create chart configurations directly in Java instead of manually assembling JavaScript or JSON. It supports modern Chart.js versions and integrations with Java UI frameworks such as Vaadin and PrimeFaces.
What is particularly interesting is where the library is being used.
Supporting healthcare software
The CareCode Open Hospital Management Information System uses the ChartJS Java Model to visualize information within its hospital management platform.
The open-source system is used by healthcare institutions to manage areas such as patients, examinations, laboratories, pharmacies and hospital administration.
A focused Java library developed by XDEV therefore contributes to software used in real healthcare environments.
Enabling digital signatures at universities
The library is also used by Esup Signature, a French platform for document approval and electronic signatures in higher education.
The system supports different electronic signature formats and works with technologies related to the European eIDAS framework.
Charts may only be one small part of such a platform, but this is exactly how open source often creates value: reliable building blocks allow development teams to focus on their actual business requirements.
Visualizing load tests
Another user is Intuit Tank, an open-source platform for load and performance testing.
Tank helps teams execute load tests and analyze how applications behave under pressure. The ChartJS Java Model supports the visualization of the resulting data.
Healthcare, electronic signatures and performance testing are very different domains. Yet all three projects benefit from the same reusable Java component.
Open source shows how we work
Today, AI can generate an implementation within seconds. But creating code is only the beginning.
A proven open-source library brings real-world usage, a documented API, compatibility work, bug fixes and years of accumulated experience. It also prevents teams from generating and maintaining their own slightly different solution to a problem that has already been solved.
AI can help developers understand, integrate and extend such libraries faster. Open source helps them avoid rebuilding reliable foundations from scratch.
The ChartJS Java Model represents how we approach software development at XDEV.
We identify recurring technical challenges, develop maintainable solutions and make useful components available to the wider Java community.
Our open-source work also gives our developers experience beyond a single customer project. Libraries used by different teams and applications must deal with API design, compatibility, upgrades, documentation and long-term maintenance.
These are the same skills required to build and modernize reliable business applications.
And when your own Java project faces a difficult integration, modernization challenge or missing component, the same expertise can help your team find a practical and maintainable solution.