<![CDATA[Mastering Java: Core Concepts to Advanced Techniques - Medium]]> https://medium.com/mastering-java-core-concepts-and-advanced?source=rss----40874db84bb0---4 https://cdn-images-1.medium.com/proxy/1*TGH72Nnw24QL3iV9IOm4VA.png Mastering Java: Core Concepts to Advanced Techniques - Medium https://medium.com/mastering-java-core-concepts-and-advanced?source=rss----40874db84bb0---4 Medium Fri, 06 Nov 2026 02:02:56 GMT <![CDATA[EPAM Java Developer Interview Experience: Core Java, Microservices, Kafka, and AI]]>

Real-world interview questions covering MCP, RAG, ConcurrentHashMap, CompletableFuture, Java coding, CAP theorem, JWT, OAuth 2.0, Saga…

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]]> https://medium.com/mastering-java-core-concepts-and-advanced/epam-java-developer-interview-experience-core-java-microservices-kafka-and-ai-eabf7b4a7c0d?source=rss----40874db84bb0---4 https://medium.com/p/eabf7b4a7c0d Tue, 03 Nov 2026 07:54:44 GMT 2026-11-03T07:54:46.173Z <![CDATA[Your AGENTS.md Adds ~20% to Agent Costs. Skipping It May Cost You More.]]>

Auto-Generated AGENTS.md Files Are Dead. Here’s What to Commit Instead.

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]]> https://medium.com/mastering-java-core-concepts-and-advanced/your-agents-md-adds-20-to-agent-costs-skipping-it-may-cost-you-more-e5729f84f290?source=rss----40874db84bb0---4 https://medium.com/p/e5729f84f290 Sun, 11 Oct 2026 23:32:58 GMT 2026-10-11T23:32:57.992Z <![CDATA[The AI Productivity Gap Is Mostly a CI Gap]]>

AI does not create a productive engineering team; it magnifies whatever delivery system the team already has.

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]]> https://medium.com/mastering-java-core-concepts-and-advanced/the-ai-productivity-gap-is-mostly-a-ci-gap-fcfa895a319e?source=rss----40874db84bb0---4 https://medium.com/p/fcfa895a319e Sun, 04 Oct 2026 23:39:48 GMT 2026-10-04T23:39:48.090Z <![CDATA[The 2-Second Bug Hiding in Every “Simple” Rate Limiter]]>

A single INCR call looks like a complete rate limiter. At real traffic, it's already lying to you — and the fix isn't the algorithm you'd…

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]]> https://medium.com/mastering-java-core-concepts-and-advanced/the-2-second-bug-hiding-in-every-simple-rate-limiter-72dbfde2afda?source=rss----40874db84bb0---4 https://medium.com/p/72dbfde2afda Tue, 29 Sep 2026 03:28:48 GMT 2026-09-29T03:28:48.326Z <![CDATA[2 Silent Failure Modes Are Hiding in Every Spring Boot AI-Agent Backend]]>

Virtual threads promised a free concurrency upgrade. JDK 25 only fixed one of the two ways they bite back in production.

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]]> https://medium.com/mastering-java-core-concepts-and-advanced/2-silent-failure-modes-are-hiding-in-every-spring-boot-ai-agent-backend-dc60b6f4dd92?source=rss----40874db84bb0---4 https://medium.com/p/dc60b6f4dd92 Sun, 27 Sep 2026 17:31:10 GMT 2026-09-27T17:32:02.125Z <![CDATA[4 Types of LLM Caching, and Only One of Them Can Lie to You]]>

Semantic caching can return a wrong answer with a 200 status — and nothing in the response tells you it happened.

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]]> https://medium.com/mastering-java-core-concepts-and-advanced/4-types-of-llm-caching-and-only-one-of-them-can-lie-to-you-6a074f5da8ac?source=rss----40874db84bb0---4 https://medium.com/p/6a074f5da8ac Sun, 27 Sep 2026 04:42:43 GMT 2026-09-27T04:42:43.113Z <![CDATA[Why Everyone Assumes AI Agents Need Python — And Why That’s Backwards for Production]]>

A typed tool boundary catches the bug your prompt-engineering can’t. Here’s what that looks like in Spring AI, and where Python still wins…

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]]> https://medium.com/mastering-java-core-concepts-and-advanced/why-everyone-assumes-ai-agents-need-python-and-why-thats-backwards-for-production-c950be416c5b?source=rss----40874db84bb0---4 https://medium.com/p/c950be416c5b Sat, 12 Sep 2026 03:08:10 GMT 2026-09-12T03:08:10.713Z <![CDATA[Researchers Hid a Working Exploit Inside a PNG. Your AI Code Reviewer Never Opened It]]>

GhostCommit shows what happens when “review the code” quietly stops meaning “review everything the code depends on.”

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]]> https://medium.com/mastering-java-core-concepts-and-advanced/researchers-hid-a-working-exploit-inside-a-png-your-ai-code-reviewer-never-opened-it-6e610c777195?source=rss----40874db84bb0---4 https://medium.com/p/6e610c777195 Sun, 23 Aug 2026 02:38:18 GMT 2026-08-23T02:38:18.225Z <![CDATA[The Real Bottleneck in AI Coding Isn’t the AI. It’s You Reviewing It]]>

Everyone’s racing to generate more code. Almost nobody’s built a way to review it fast enough — and that gap is where the risk lives.

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]]> https://medium.com/mastering-java-core-concepts-and-advanced/the-real-bottleneck-in-ai-coding-isnt-the-ai-it-s-you-reviewing-it-d2c4d016533f?source=rss----40874db84bb0---4 https://medium.com/p/d2c4d016533f Fri, 21 Aug 2026 23:38:17 GMT 2026-08-21T23:38:17.650Z <![CDATA[I Let an AI Agent Review Every Pull Request for 30 Days. It Caught 40% of the Wrong Bugs]]>

What a diff-scoped code reviewer catches, what it confidently gets wrong, and the one prompt change that fixed it

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]]> https://medium.com/mastering-java-core-concepts-and-advanced/i-let-an-ai-agent-review-every-pull-request-for-30-days-it-caught-40-of-the-wrong-bugs-ac96b5a88b34?source=rss----40874db84bb0---4 https://medium.com/p/ac96b5a88b34 Thu, 20 Aug 2026 02:17:25 GMT 2026-08-20T02:17:25.489Z