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Enterprise Java
How Spring Proxies Actually Work — And the Four Cases Where They Silently Don’t
A deep-dive into how @Transactional, @Cacheable, and @Async use CGLIB or JDK dynamic proxies — and the four well-known failure…
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JavaScript
JavaScript Safe Integer Limit Explained
JavaScript uses the Number type for both integers and floating-point values. While this simplifies the language, it also introduces an…
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JavaScript
Understanding JSON Schema
JSON (JavaScript Object Notation) has become the backbone of modern software systems. It is used everywhere, from APIs and microservices…
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Enterprise Java
Spring’s ApplicationContext Startup Is Slower Than You Think:Fix It With AOT and Lazy Init
A forensic diagnostic of where startup time actually goes — BeanFactory, condition evaluation, component scan, proxy generation — which knobs…
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Software Development
Observability vs. Monitoring: Why Logs, Metrics, and Traces Are Not Interchangeable
The conceptual difference between the three pillars of observability, what each one is uniquely suited to reveal, and why treating…
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Software Development
The Economics of Technical Debt: How to Reason About It Strategically Rather Than Emotionally
Framing technical debt as a financial instrument — interest rate, principal, and amortization — and how that lens changes prioritization…
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Core Java
Value Classes (JEP 401): When Records Aren’t Flat Enough for the JIT
How value classes differ from records — no identity, no heap header — where they outperform records in tight loops,…
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Enterprise Java
Bean Background Initialization in Spring Boot
Spring Boot is well known for its fast startup and powerful auto-configuration capabilities, enabling developers to build production-ready applications with…
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Software Development
The Illusion of Idempotency: Why “Safe to Retry” Is Harder to Guarantee Than It Looks
A deep dive into idempotency keys, at-least-once delivery, and the subtle scenarios where retry logic silently corrupts state. “Just make…
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