Vidocq is a workspace of fifteen independent Maven projects. Each one implements exactly one Jakarta or MicroProfile specification — or one foundational concern — and publishes its own artifact to Maven Central on its own schedule.
The dependency graph is strictly layered: foundational bricks have no dependency on each other; Jakarta layers compose bricks; MicroProfile layers sit on top.
TCK Status
The table below summarizes the current official TCK position for each project. Projects with more than one official suite list each suite separately.
| Project | TCK status |
|---|---|
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CDI 4.1 Lite — 774/774 tests passed (100%). |
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JSON-P 2.1 — 179/179 tests passed (100%). JSON-B 3.0 — 290/295 tests passed (98.3%, 5 upstream skips). |
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MicroProfile Config 3.1 — 349/349 tests passed (100%). |
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Jakarta Servlet 6.1 — 1,714 tests run, 921 passed (53.7% raw); the |
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Jakarta REST 4.0 — 2,670 tests run, 2,535 applicable passed (100% of applicable tests). |
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MicroProfile Fault Tolerance 4.1 — 463/463 tests passed (100%). |
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MicroProfile JWT 2.1 — 206/206 tests passed (100%). |
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MicroProfile Rest Client 4.0 — 168/168 tests passed (100%). |
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MicroProfile Metrics 5.1.1 — 127/127 tests passed (100%). |
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MicroProfile OpenAPI 4.1 — 349/349 tests passed (100%). |
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MicroProfile Telemetry 2.1 — 85/85 tests passed (100%). |
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MicroProfile Health 4.0 — 28/28 tests passed (100%). |
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Jakarta Data 1.0 — 74/74 tests passed (100%). Jakarta Transactions 2.0 — smoke suite 5/5 passed (100%). |
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Not applicable — transport project, not a spec implementation. |
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Not applicable — orchestrator project, not a spec implementation. |
Foundational Bricks
These four modules have zero inter-dependencies and carry no external runtime libraries. They are the stable base everything else builds on.
chappe — HTTP Server
Pure Java 25 HTTP/1.1 and HTTP/2 transport layer, with first-class WebSocket (RFC 6455) and gRPC transport (core framing over HTTP/2). HTTP/3 is on the roadmap, pending the JDK QUIC stack. Handles connections, request parsing, and response serialisation with no third-party I/O framework.
Sustains 100k req/s with a p99 below 3 ms on the project’s reference harness — a deliberate ceiling of the pure one-virtual-thread-per-connection model, matching Jetty-level latency at a fraction of the idle memory footprint.
vauban — CDI Container
CDI 4.1 Lite container, fully JPMS-native. Uses the Class-File API and APT processors to generate bean metadata at compile time — no runtime scanning, no reflection.
champollion — JSON & Protobuf Processing
Jakarta JSON-P 2.1 and JSON-B 3.0 implementation. Produces JSON-B adapters and serialisers statically at build time. Also provides Protocol Buffers support, generating message codecs at compile time — the serialisation backend for `chappe’s gRPC transport, with no external protobuf runtime.
ravel — Configuration
MicroProfile Config 3.1 implementation.
Sources: environment variables, system properties, and META-INF/microprofile-config.properties.
Jakarta EE Layer
foy — Jakarta Servlet 6.1
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Note
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Development in progress. The Servlet layer is actively being built out and is not yet feature-complete. |
Servlet container bridging chappe for transport and vauban for CDI integration.
cassini — Jakarta REST 4.0
JAX-RS implementation. Resource scanning and provider registration are handled at compile time via APT, keeping startup time flat regardless of application size.
MicroProfile Layer
heisenberg — Fault Tolerance 4.1
@Retry, @CircuitBreaker, @Bulkhead, @Timeout, and @Fallback over virtual threads.
No thread-pool per policy; each interceptor submits to the shared virtual-thread executor.
cervantes — JWT 2.1
MicroProfile JWT: bearer token verification and JsonWebToken injection.
Uses champollion for JSON parsing; no third-party JWT library.
cyrano — Rest Client 4.0
Typed REST client generated at compile time from @RegisterRestClient interfaces.
Built on cassini and chappe; no dynamic proxies at runtime.
dirac — Metrics 5.1.1
MicroProfile Metrics: counters, gauges, timers, and histograms exposed over a /metrics endpoint.
grimm — OpenAPI 4.1
MicroProfile OpenAPI: generates the OpenAPI document from JAX-RS resources during the build via APT, then serves it statically at runtime.
humboldt — Telemetry 2.1
MicroProfile Telemetry: distributed tracing, metrics, and logs through the OpenTelemetry SDK.
knock — Health 4.0
MicroProfile Health: liveness and readiness probes at /health/live and /health/ready.
Persistence and Transactions
mansart — Jakarta Data 1.0 + Transactions 2.0 + JDBC
Repository pattern and transaction management with a built-in JDBC connection pool. Two database dialects are supported out of the box: H2 and PostgreSQL. Jakarta Persistence 3.2 support is planned for a future milestone.
The H2 integration also showcases Vidocq’s JAR-enrichment capability: a dedicated H2 extension
repackages the upstream H2 driver as a proper JPMS module — adding a module-info and clean
exports to a library that ships only as a classpath JAR — so it fits the strict module graph
without --add-opens or automatic-module fallbacks.
Orchestrator
vidocq — Vidocq-MPS
Runtime orchestrator and extension SPI. Inspired by the Quarkus extension model: extensions declare their dependencies, contribute configuration, and wire the other bricks together at startup.