Java
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Stop Using Virtual Threads for Everything: Performance Lessons Learned
When JEP 444 landed in Java 21 in September 2023, the reaction across the Java community was unusually enthusiastic. Virtual threads promised…
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Kafka Without ZooKeeper (KRaft): What Java Developers Actually Need to Reconfigure
For over a decade, running Apache Kafka in production meant running two distributed systems simultaneously. Kafka handled message streaming; ZooKeeper…
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Project Panama FFM API: Calling C Code Without JNI Hell
Java has always needed a way to call native code. Scientific computing, image processing, hardware drivers, cryptography libraries — the…
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JSpecify + Spring Boot 4: Finally Fixing Java’s Billion-Dollar Mistake
Tony Hoare introduced the null reference in 1965 and later called it his “billion-dollar mistake.” For Java developers, the pain has been…
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Stop Blindly Trusting AI: Java Pitfalls I Discovered in 2026
By 2026, AI coding assistants have become as routine in a Java developer’s workflow as Stack Overflow once was. Stack Overflow’s…
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GraalVM Native Image: Why Reflection Still Breaks in 2026 and How to Fix It
GraalVM Native Image has solved the startup time problem. A Spring Boot application that previously took 3–5 seconds to start…
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Structured Concurrency in JDK 27: How StructuredTaskScope Prevents Thread Leaks
Virtual threads solved the scalability problem — but not the correctness problem. You can now spin up a million threads…
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GIS Map Service Introduction in Java
1. Introduction You can see various map services like google maps, bing map and more in your ordinary life. This…
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OpenCV Android Object Detector
This post will be the final chapter of my series on object detection since we have explored the possibility of…
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