mir-backend-jvm-micronautlisted

Make It Right (Micronaut module). Micronaut 5.x / 4.x + Micronaut Data + Micronaut Security + Netty footguns. Covers: compile-time DI and AOT (bean definitions are generated at build, but resolution is still runtime, so NoSuchBeanException/NonUniqueBeanException surfaces after startup because singletons are lazy), bean scope pitfalls (@Singleton default), blocking the Netty event loop (@ExecuteOn(TaskExecutors.BLOCKING), virtual-thread backed where supported, or reactive types), Micronaut Data repository transaction scoping and self-invocation, compile-time AOP interceptor limits on final/private/new-ed instances, and Micronaut security (CORS wide open when enabled with no configurations, allowCredentials defaulting to true on 4.x and false on 5.x, @Secured object-level authorization, and the HTTP-client credential-leakage and unbounded-redirect advisories). Chains: mir-backend -> mir-backend-jvm -> this, which adds only Micronaut library mechanics. TRIGGER only when the JVM backend stack is Micronaut — build
anantbhandarkar/make-it-right · ★ 15 · AI & Automation · score 81

Install: claude install-skill anantbhandarkar/make-it-right

# /mir-backend-jvm-micronaut · Make It Right (Micronaut) Bottom tier of the chain: `mir-backend` (generic gates) → `mir-backend-jvm` (JVM runtime model) → **this** (Micronaut library mechanics). Run the gates first; load the JVM runtime tier for threading, GC, and container-heap concerns; reach for *this* at Gate 5 (design mechanics), Gate 6 (implementation), and Gate 7 review. **Runtime-level concerns (virtual-thread pinning, pool sizing, GC tuning, `-XX:MaxRAMPercentage`, ThreadLocal hygiene, JMM visibility) live in `mir-backend-jvm` — not here.** **Stack assumed:** Micronaut 5.x (or 4.x — the differences are called out) · Micronaut Data JPA (Hibernate) or Micronaut Data JDBC · Micronaut Security · Micronaut HTTP Server (Netty) · GraalVM for native image. **Version status, verified 13 Aug 2026:** | Line | Status | What changes | |---|---|---| | **Micronaut 5.x** | GA 20 May 2026 (5.0.0). Latest verified release 5.1.0, 27 Jul 2026 | **Java 25 baseline** — virtual threads, structured concurrency, scoped values and pattern matching are all available unconditionally. Groovy 5 and Kotlin 2.3 baselines, GraalVM 25.0.3. Adds a `ScopedValue`-based context-propagation implementation alongside the thread-local one | | **Micronaut 4.x** | Still maintained (4.10.x line) | Keeps Java 17 and 21 support and runs on 25. Stay here if you cannot move to a Java 25 baseline | A Micronaut 5 answer written from Micronaut 4 memory will usually still compile; the risk is the opposite directio