How I got a thread dump from a timed-out GitHub Actions test
When a JVM test hangs and GitHub Actions cancels the job, the test JVM is often still alive. Three ways to dump it, and an action that does …
Felipe Maschio
4 articles
2,430 views
What jstack Misses When Your Java Service Uses Virtual Threads
A service with virtual threads can have thousands of requests waiting while jstack shows idle carriers. How to read Thread.dump_to_file …
Masking a JVM thread dump without breaking the analysis
A few weeks ago I posted on r/java about detecting virtual thread pinning from a plain thread dump. The technical discussion was fine. The …
Your Loom App Quietly Became a Thread Pool Again: A Field Guide to Virtual Thread Pinning
The incident that taught me to respect pinning looked like nothing. A service freshly migrated to virtual threads, a load test that …