Thread dumps are vital artifacts to debug & troubleshoot production performance problems. Thread dump files tend to span for several hundreds of lines (sometimes a few thousands of lines). It i… (more…)

Statistically rigorous Java performance evaluation Georges et al., OOPSLA’07 This paper won the 10-year most influential paper award at OOPSLA this year. Many of the papers we look at on this blog … (more…)

Notarization is required as of macOS 10.15 (Catalina), and it’s a bit of aminefield - doubly so for a Java application, or anything built outside Xcode. (more…)

This document explores possible directions for data classes and sealed types in the Java Language, and is an update to Data Classes in Java. This is an exploratory document only and does not constitute a plan for any specific feature in any specific versi... (more…)

Problem Statement Even the most basic problems become interesting when you dig deep enough. Today, I would like to do a deep dive into measuring time in Java. We will start with the very basics of the Java API and gradually move lower in our stack: throug... (more…)