Java
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eBPF for Java Developers: What It Is, Why It’s Revolutionizing Observability, and How It Affects Your JVM Profiling
The technology reshaping how async-profiler and JFR see your code — explained without the kernel jargon. If you have spent…
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Resolving the “Validation Failed for Query for Method” Error in Spring Data JPA
This article explains how to diagnose and resolve the error “Validation failed for query for method” in Spring Data JPA.…
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Getting Started with TOON Format in Java
Token-Oriented Object Notation (TOON) is a modern data serialization format designed to represent structured data in a compact, human-readable, and…
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Prompt Engineering Is Not Enough: How Java Developers Should Structure AI Agent Workflows Using Embabel or Koog
Goal-oriented planning, tool registration, and multi-step task execution — finally, on the JVM. 1. The Problem With Prompt-Only Thinking If…
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Java 25 vs Java 21: The Upgrade Guide Nobody Has Written Yet
A practical, decision-driven comparison for enterprise teams on Java 21 — covering the three changes that actually matter for production.…
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Compact Object Headers: The Invisible JDK 25 FeatureWith the Biggest Memory Impact
How four saved bytes per object can quietly transform your entire heap — and why you don’t have to change…
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Project Babylon: Code Reflection and What It Means for ML on the JVM
For most of its history, Java has sat on the sidelines of the machine learning conversation. Python dominated that space,…
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A Guide to Exporting and Backing Up H2 Databases
Data protection is a critical aspect of application development. Applications that rely on embedded databases, such as the H2 Database…
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The Post-Quantum Security Timeline for Java: JEP 496, JEP 527, and What Teams Should Do Now
If you manage Java services that handle sensitive data, 2026 is a year that deserves your attention. Not because quantum…
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