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Friends of OpenJDK Today

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

Aug 15, 2025 Rajesh Nair

While waiting for your flight in an airport, have you ever wondered how much behind-the-scenes planning it takes to keep an airport running …

The growing adoption of MongoDB Atlas as a managed database platform increasingly demands mechanisms that align security, compliance, and …

Aug 12, 2025 Miro Wengner

The future is not yet written and every moment is important.

Spring Boot 4 and Spring 7 bring API changes, native threads, and resilience. Prepare your codebase for the upgrade.

Launched on June 26, 2025, Jakarta EE 11 introduces one brand-new specification and updates 16 existing ones.

Build semantic caching with Spring AI & Redis to cut LLM costs 80%. Cache by meaning, not exact text. Full tutorial with working demo.

With destructuring, pattern matching is a huge help to developers who want to write readable and maintainable code.

You no longer need a cloud account to try MongoDB Atlas features. Spin up a fully compatible local cluster in seconds, with no login, no …

The JC-AI Newsletter Vol.2 brings again a very interesting collection of articles worth considering.

Earlier this month, I released V0.0.1 of my new Java library to interact with DMX512 devices using (optionally) the Open Fixture Library …