Felipe Maschio

Software engineer from Curitiba, Brazil, focused on JVM performance and thread-dump analysis. He is the founder of ThreadMine, a JVM thread dump analyzer. Experienced in Project Loom and virtual thread pinning and the quiet ways it caps throughput in production.

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Towards an understanding of sustainable software development, written by and for the friends of OpenJDK

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Masking a JVM thread dump without breaking the analysis

Table of Contents What a thread dump actually leaksWhy "mask everything" doesn't workHow a name becomes a tokenThe flow, from the point of view of someone who has never run itDoes the analysis survive?What a security team can actually checkWhere ...

Sep 09 216

Felipe Maschio

Java

Java Core Security

Your Loom App Quietly Became a Thread Pool Again: A Field Guide to Virtual Thread Pinning

Table of Contents What pinning actually isThe two causes — and it really is just twoThe canonical bugWhat JDK 24 changed (JEP 491)How to catch itHow to fix itWhy I ended up automating the readThe incident that taught me to …

Jul 16 1,3K

Felipe Maschio

Java

Java Core