Yann Blazart

Yann Blazart

Senior Tech Lead at SCIAM

Jakarta EE/MicroProfile architect and senior tech lead, co-creator of LangChain4j-CDI. Regular speaker at Devoxx France, JavaOne, Paris JUG and Devoxx Belgium on Jakarta EE and CDI.

Posts

Jul 06, 2026 · 4 min read

Vidocq: A Sovereign Jakarta EE and MicroProfile Runtime

We are releasing Vidocq as open source — a complete implementation of the Jakarta EE Core Profile and MicroProfile, written in pure Java, with zero external dependencies, validated by 5,650 official TCK tests. A runtime designed for sovereignty, standards and security.

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Jun 25, 2026 · 13 min read

The Story of Vidocq

What if we asked an AI agent to implement the entire Jakarta EE Core Profile and MicroProfile, with zero external dependencies and no runtime bytecode manipulation? The story of a spec-driven development experiment pushed to the extreme, where the TCK is the merciless referee — 15 modules, 180,000 lines of Java and 5,650 acceptance tests passing.

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