JFR vs async-profiler for production CPU profiling
For production CPU profiling on a JDK 21 or 25 box in 2026, default to async-profiler with --jfrsync : roughly 1% overhead at -i 10ms , no safepoint bias.
Testcontainers vs zonky embedded Postgres: integration test latency on GitHub Actions
If your CI bill is dominated by Docker pulls and your @DataJpaTest classes each create their own database, the choice between Testcontainers and zonky's.
Azul Zulu Prime 24.03 CRaC SIGILL on Graviton Cross-Gen Restore
As of: March 22, 2026 — Azul Zulu Prime 24.03 Quick nav Why does the SIGILL only fire after a CRaC restore? What does the crash look like in a…
Maven vs Gradle for Spring Boot: The Ultimate Performance Guide
I still remember the day my team hit a wall with our CI pipeline. We were maintaining a massive Spring Boot monolith—over 80 modules, half a million lines.
Azul Zulu’s CRaC Support Finally Fixed My Cold Start Nightmare
I spent last weekend staring at Datadog dashboards, watching our Java microservices take their sweet, agonizing 14 seconds to spin up during a sudden.
Fixing Java’s Dependency Mess Before It Breaks Again
Actually, I should clarify - another Friday night ruined. Well, that's not entirely accurate. I spent three hours last weekend trying to figure out why a.
Gradle 9.2: Isolated Projects Just Broke My Build (And I Love It)
Well, I have to admit, I've had a love-hate relationship with Gradle. Mostly hate, if I'm being honest. But last Tuesday, I decided to bump our main.
Stop Writing Bash, Start Using JBang (It’s 2026, People)
Well, that's not entirely accurate - for years, despite being a "Java guy," I actually wrote all my utility scripts in Python or Bash .
Tomcat’s Base64 RCE: Why We Can’t Have Nice Things
Actually, I spent my Friday night patching three different legacy clusters because apparently, we haven't learned our lesson about HTTP verbs yet.
Java Virtual Threads: A Production Reality Check
Well, I've been running them in production on our payment processing service for the last six months. And honestly? It's mostly great. Mostly.