Kotlin in 2025–2026: The K2 Era and the Rise of True Multiplatform Development

Kotlin has always positioned itself as a pragmatic language—concise, safe, and deeply integrated with the JVM ecosystem. However, the latest…

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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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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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Java 21 vs Java 25 LTS: The Migration Decision Framework Teams Are Avoiding

Two LTS releases now coexist. Virtual thread pinning is fixed. Memory is down 22%. Startup is faster. The gap is…

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Vector API at Eleven Incubations: Why This API Takes So Long and What’s Blocking It

JEP 529 ships in JDK 26 with no substantial changes since JDK 25. After five years and eleven rounds, the…

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The Lies Your JVM Profiler Tells You: Safepoints, Biased Sampling, and WhyYour Hotspot Analysis Is Wrong

You ran your profiler. You found the hotspot. You optimised it. Performance didn’t change. Here’s the precise technical reason why…

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The First JVM-Native AI Agent Frameworks —And Why Rod Johnson Built One of Them

Spring’s creator re-entered open source to bring GOAP-powered agent planning to the JVM. JetBrains shipped a coroutine-first competitor the same…

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Fray: The CMU Tool That Finds Concurrency Bugs Your Tests Miss — and Replays Them

Race conditions and deadlocks are famous for appearing once in production and never again in tests. Carnegie Mellon’s Fray is…

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