The Invisible Contract Between a Framework and Its Users — And What Happens When a Major Version Breaks It

When a team adopts Spring, Hibernate, or any long-lived Java framework, they are not just choosing a library. They are…

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Mutation Testing With PIT in Java: The Coverage Metric You’re Ignoring That Actually Measures Test Quality

Line coverage tells you which code ran. Mutation testing tells you whether your tests would actually catch a bug. Here…

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The Lies Your Microbenchmarks Tell You: A JMH Field Guide for Backend Engineers

JMH is powerful, but deceptively easy to misuse. Here are the five pitfalls that silently corrupt your results — and…

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Why “Make It Work, Then Make It Right, Then Make It Fast” Produces Bad Systems at Scale

Kent Beck’s maxim is genuinely good advice for an individual working on a bounded problem. The argument here is that…

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The Reason Most Architecture Decision Records Get Written and Never Read Is Architectural, Not Cultural

Architecture Decision Records are praised universally and practised sporadically. The orthodox explanation is culture and discipline. The deeper argument is…

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The Fundamental Tension Between Consistency and Availability Is Not a Technical Problem. It’s a Business Decision Most Engineers Are Making Alone

CAP theorem gets taught as a distributed systems concept. What’s completely missing is the organisational dimension: engineers are making these…

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Structured Logging Has Been”Best Practice” for Five Years. Why Most Java Teams Are Still Doing It Wrong

A diagnostic-focused look at the four failure modes nobody writes about: context lost across async boundaries, MDC leaks, log volume…

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Serialization Is Still Java’s Biggest Attack Surface. What JEP 290 Actually Did and What It Didn’t

What JEP 290 actually did, what it genuinely left open, and how to write filters that hold up in the…

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Platform Engineering in Practice: Building an Internal Developer Platform Without the Hype

Most articles on IDPs read like vendor brochures. This one doesn’t. Here’s what an internal developer platform actually needs —…

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