Diagnosing user-reported issues using WireQuery
WireQuery is a tool that helps you solve user-reported issues by combining session replay with capturing API calls. In this article, I will …
Friends Of OpenJDK Today
Every article on foojay.io, newest first: OpenJDK, the JVM, Java tooling and the ecosystem around them, written by the Java community.
Building a Simple Home Assistant using Langchain4j and Raspberry Pi
Discover how to build a smart home assistant using Langchain4j and Raspberry Pi, featuring capabilities such as question-answering with RAG, …
SQL Query Optimization: How to Identify and Optimize Slow SQL Queries
In this article, we want to share our experience using real-life examples on how to identify and optimize slow SQL queries, especially when …
Spring AI: How to Write GenAI Applications with Java
We'll look at how to write GenAI applications with Java using the Spring AI framework and utilize RAG for improving answers.
Duplicate Finder for Documentation
Let's make a duplicate finder for documentation together – a tool to quickly detect non-exact, or fuzzy, matches in large text repositories.
Is your Java application ready for the next generation of server CPUs?
With every major cloud provider now offering Arm-based instances, it’s time to start looking at what you need to do to migrate your Java …
Remotely Recording a JFR Log from a Container (Without Using the Command Line)
JFR logs are easily obtained by simply going into the command line. But what if you don't have access to the command line or terminal …
Let's Replace the synchronized Keyword
Let's replace the synchronized keyword to be more virtual threads friendly in a code readable way.
Why This JCON Europe Talk Is Unmissable (Part 2)
My talk titled "Jakarta EE 11 - Performance and Developer Productivity" will give you a full overview of what to expect from the upcoming …
5,040 viewsFoojay Podcast #48: JUG Oberpfalz, JCON Conference, and JAVAPRO Magazine
In this episode, we are in Oberpfalz, Germany, for a particular reason; the organizers of the local JUG are the same people responsible for …