Core Java
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Kotlin Coroutines vs Virtual Threads: Two Answers to Cheap Concurrency
Every few months, someone on a team asks the same question: now that Java has virtual threads, do we still…
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In-Process Inference vs Calling a Service: ONNX Runtime and DJL Against a Remote Model
Every Java team that adds a machine learning model faces the same early choice. Do you load the model inside…
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Time Zones as a Data Problem: tzdata Updates, java.time, and the Bugs That Survive
Most developers treat time zones as arithmetic. In reality, they are laws, and laws change on short notice. That makes…
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Vector Search for Java Developers: HNSW Intuition and pgvector in Practice
Search used to mean matching words. Today it often means matching meaning, and that is where vectors come in. An…
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JDK 26 Performance Enhancements
Java Development Kit (JDK) 26 introduces improvements across Java libraries, garbage collection, startup performance, compilation, and runtime execution. Released in…
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The Disruptor and Mechanical Sympathy: Ring Buffers Against Queues
Most Java developers reach for a queue whenever two threads need to talk. It feels natural, and it usually works…
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Coordinated Omission: Why Your Latency Benchmark Flatters You
Your load test says the 99th percentile is fine. Meanwhile, a thousand requests quietly vanished from the results. The Benchmark…
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Three Metaprogramming Models in Java: Annotation Processors vs Bytecode Agents vs Reflection
Java code can write, rewrite, or inspect other Java code. The real question is when it happens, and who pays…
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BEAM Supervision Trees and “Let It Crash”: What Java Services Can Steal from Erlang
Most Java code tries hard to never fail. Erlang takes the opposite view, and the idea travels better than you…
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