Spring AI Guide to MCP Elicitations

As AI systems become more interactive, handling incomplete or ambiguous user input becomes critical for building reliable applications. MCP elicitations…

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Spring Boot 4 vs. 3: What Actually Changed

The migration guides list dozens of changes. Most articles rehash the changelog. This piece focuses on the three changes that…

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Hibernate 6 vs. Spring Data JDBC vs. jOOQ. Picking Your Persistence Strategy for the Virtual-Thread Era

JDBC is still blocking. Hibernate 6 added reactive support through Vert.x. jOOQ is reviewing its ThreadLocal usage for Loom compatibility.…

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Sealed Classes and Exhaustive Pattern Matching: How They Change API Design, Not Just Syntax

Both features have been stable since Java 17 and 21. Most articles show the syntax. Almost none explain how they…

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Java Module System in 2026: Still Ignored, Still Relevant

JPMS shipped with Java 9 in 2017. Nearly a decade later, enterprise adoption remains stubbornly low. This is not a…

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The Object Allocation Tax: Why Your Java Service Is 40% GC and How the JIT’s Escape Analysis Both Helps and Misleads You

A ground-level look at how HotSpot C2 decides between scalar replacement and heap allocation, the everyday patterns that silently defeat…

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OpenRewrite: The Automated Migration Tool That’s Quietly Changing How Teams Upgrade Java

It started at Netflix, migrated the Jakarta EE TCK, and is now the dominant automation tool for Java modernization according…

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Virtual Threads One Year in Production: What Teams Got Wrong and What Actually Improved

Project Loom shipped in Java 21 in September 2023. Two-plus years of real production data — including Netflix’s deadlock post-mortem,…

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The JVM Garbage Collector Decision in 2026: G1 vs ZGC vs Shenandoah for Real Workloads

ZGC and Shenandoah have both gone generational. G1 picked up meaningful JDK 25 improvements. Most teams still default to G1…

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