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foojay is a place for friends of OpenJDK, providing free, reference materials and blogs for daily Java usage.

Sonar Connect Amsterdam : learn about code quality and code security specially when using AI generated code.

In the second part of our JCON interviews, recorded at the conference in May, we focuses on general evolutions within the Java world and how …

This is the second article in a series on faster Java application warmup. The first blog post, Faster Java Warmup: CRaC versus ReadyNow, …

In a multi-threaded, distributed environment like MongoDB, when clients execute queries concurrently, operations interleave with one another …

Boost Jakarta EE database performance by leveraging the following best practices.

In this blog post, we'll explore the different layers of RAG, including vector RAG, graph RAG, and agents.

I've been eying OpenRewrite for some time, but I haven't had time to play with it... yet.

This is the first blog post in a series on faster Java application warmup with ReadyNow.Azul has developed different solutions to help …

The MongoDB Aggregation Framework works like a pipeline—a series of stages where each step processes the data in some way.

Explore the refined Java Structured Concurrency API. Learn about new task scopes, joiners, and improved error handling for cleaner, more …