Inside JMH: How the Microbenchmark Harness Defeats Dead Code
Understand jmh benchmark dead code elimination, the main trade-offs, and the practical checks to use before relying on it in practice.
Inside JFR Event Streaming: How the JVM Buffers Events Without
JFR streams events without halting the application because the emitter and the consumer don't share a mutable in-memory queue.
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.
Inside Project Loom’s Thread Scheduler: How Carrier Threads Get Pinned
Overview The Scheduling Contract Between Virtual and Carrier Threads What Actually Causes a Carrier Thread to Get Pinned?
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…
Java Virtual Threads: Where They Help and Where They Quietly Make Things Worse
Java 21 made virtual threads a permanent language feature, ending a multi-year preview cycle and giving the JVM its first real answer to high-concurrency.
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.
Gradle Tooling Finally Stopped Crashing My IDE
So there I was last Tuesday, staring at the "Gradle: Syncing..." spinner for the fourth time before 9 AM. My M2 MacBook Pro sounded like it was preparing.
The Unlikely Return of Micro Java for CLI Apps
I read another comment thread yesterday where someone confidently claimed Java is too bloated for CLI tools or edge devices. Learn about Java ME news.