How Does Kafka Perform When You Need Low Latency?
Kafka benchmarks aim to discuss low latency characteristics of Kafka. Instead, they appear to be configured for throughput rather than low …
Friends of OpenJDK
Friends of OpenJDK Today
foojay is a place for friends of OpenJDK, providing free, reference materials and blogs for daily Java usage.
Release with JReleaser to Maven Central with GitHub Actions
Learn from scratch about how to get started releasing a Java module with JReleaser to Maven Central with Github Actions.
JTest: Roll Out Your Own JUnit-Like Testing Framework
In this interactive tutorial and educational project, you'll learn about JUnit internals and the usage of Java annotations and reflection.
Foojay Podcast #11: Looking Back to 2022
In this Foojay Podcast episode, we talk about Ted Neward's predictions, and an analogy between Twitter and Java!
Debugging Streams and Collections
Java 8 streams improved readability and provide great debugging opportunities. There are amazing tools for inspecting collections and …
The Massive Hidden Power of Breakpoints
Learn about tracepoints (AKA logpoints) how exception breakpoints don't suck, watchpoints, filters & why method breakpoints are problematic.
Writing a Profiler from Scratch: The Profiling Loop
How do profilers like async-profiler work? How to write your own? This is the second part, covering wall-clock profiling.
Unsafe Deserialization Vulnerability in SnakeYaml
org.yaml:snakeyaml package is widely used in the Java ecosystem, in part because it is packaged by default in the spring-boot-starter.
Why Your Choice of JVM Matters More Than Ever
Learn why when you use hyper-optimized Java runtimes instead of vanilla OpenJDK you do less tuning and debugging!
How to Reduce Cloud Cost by 99% for EDA Kafka Applications
About 400x more instances can be run on the same hardware with Chronicle Queue for specific latency-sensitive EDA applications.