Java
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Building Idempotent Java Consumers for Replay-Safe Kafka Pipelines
Fast Kafka consumers are not automatically safe Kafka consumers. A Java service can keep up with partitions, restart cleanly, and…
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Jakarta EE 11 Under the Hood: What Spring Boot 4 Inherits and What It Ignores
Spring Boot 4 has understandably grabbed most of the headlines in the Java ecosystem. However, underneath the excitement around Spring’s…
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Zero-Trust Architecture for Backend Engineers: What It Actually Means Beyond the Marketing
A few years ago, securing a backend system was relatively straightforward. Applications lived inside a corporate network, databases sat behind…
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How the JVM Decides What to Compile: Inside the JIT Tier System and Profiling Pipeline
A conceptual walkthrough of C1, C2, tiered compilation, and why the JVM’s optimizer knows more about your code than you…
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Understanding Garbage Collection Pauses: Why Stop-the-World Still Happens and What the JVM Is Actually Doing
A conceptual guide to safepoints, GC roots, and why even modern collectors like ZGC and Shenandoah cannot always avoid pausing…
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Markdown Rendering with commonmark-java
Markdown has become the de facto standard for writing documentation, technical blogs, README files, knowledge bases, and collaborative content. While…
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Spring Modulith 2.0: Enforcing Module Boundaries Before Microservices
Most Java teams hit a wall sooner or later. The monolith that felt manageable at launch gradually turns into a…
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The Java Memory Model Explained: Happens-Before and Concurrency Semantics
There is a quiet assumption embedded in almost every line of Java ever written: that when one thread writes a…
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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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