[MM’s] Engineering Weekly #28 — Resilient Data, Code Quality & The Dev Landscape
Netflix’s Write-Ahead Log abstraction for data resilience, strategies for enforcing coding standards in Spring Boot and the dynamics in AI and developer tools.

🎯 Featured Article
📝 Building a Resilient Data Platform with Write-Ahead Log at Netflix
Netflix explains how the Write-Ahead Log (WAL) abstraction underpins reliable and consistent data processing at massive scale.
⬢ WAL ensures durability and consistency across distributed systems.
⬢ At Netflix scale, operational challenges are amplified, requiring careful abstractions.
⏩ TL;DR (Quick Recap)
⬢ WAL is central to Netflix’s data platform reliability.
⬢ Spring is deprecating RestTemplate in favor of modern HTTP clients.
⬢ AI tools like Claude Agent are reshaping developer workflows.
⬢ LLM rankings are becoming a new battleground for SEO visibility.
☕ JVM Corner
📦 Microsoft’s OpenJDK builds now ready for Java 25
Production-ready OpenJDK 25 binaries are now available, optimized for Azure and enterprise deployments.
⬢ Builds tested across platforms, rolling out in October.
⬢ Supports enterprise-grade stability for long-term use.
🔧 Guide to Java Diff Utils
An introduction to Java Diff Utils for tracking and visualizing content changes.
⬢ Useful for version control, code review, and collaborative editing.
🤖 Google’s Agent Development Kit for Java Adds Integration with LangChain4j
The Agent Development Kit for Java now integrates with LangChain4j, extending LLM support.
⬢ Developers can connect to a wide range of LLMs.
📱 Building a cross-platform step tracker with Compose Multiplatform
A case study on using Compose Multiplatform to deliver Android and iOS apps simultaneously.
⬢ CMP enables shared UI and business logic.
⬢ Reduces duplication when building for multiple platforms.
🍃 Spring Updates
🛠️ Stop Using Defaults: 9 Spring Boot Configurations Every Developer Must Know
Hidden Spring Boot configurations that improve performance and readiness.
⬢ Covers startup optimization, DB access, and production tuning.
⬢ Helps avoid costly reliance on defaults.
💾 Stop Using Only save() in JPA — 10 Hidden Methods Every Spring Boot Dev Should Know
Exploring overlooked JPA methods beyond save() and findById().
⬢ Cleaner, faster code with less boilerplate.
📋 How I Enforced Coding Guidelines on a 15-Dev Spring Boot Monolith
A practical guide to applying automated coding standards.
⬢ Spotless, Checkstyle, and pre-commit hooks streamline enforcement.
⬢ Ensures team-wide consistency before CI/CD adoption.
🌐 The state of HTTP clients in Spring
Spring officially deprecates RestTemplate in favor of modern HTTP clients.
⬢ WebClient and HttpInterface are the future.
📘 Spring Boot Starter for Microsoft Entra developer’s guide
Official guide for integrating Microsoft Entra with Spring Boot.
⬢ Includes diagnostics, workarounds, and best practices.
🔍 Extra Reads
AI & Tools
🤖 Introducing Claude Agent in JetBrains IDEs — Claude Agent is now integrated into JetBrains IDEs, enabling advanced AI coding support.
🧠 Introducing Claude Sonnet 4.5 — Anthropic’s latest model improves reasoning, math, and agent-building.
📈 LLM Rankings: The New Battleground — Mentions now matter more than backlinks in AI search rankings.
🗨️ Chatbait Is Taking Over the Internet — How chatbots use tactics to maximize user engagement.
Software & Systems
🗜️ Taking a Look at Compression Algorithms — A deep dive into algorithms beyond Huffman trees.
⚡ Less is safer: how Obsidian reduces the risk of supply chain attacks — Obsidian’s design minimizes dependency-based risks.
📄 The yaml document from hell — A critique of YAML’s complexity and pitfalls.
Industry & Culture
💼 “Micro-shifting” is the new favorite way to work — Flexible work arrangements gain popularity among younger workers.
📉 Product Hunt is Dead — Reflections on the decline of Product Hunt as a launch platform.
⚖️ How GitHub protects developers from copyright enforcement overreach — Why a Supreme Court case matters for developers.
📝 Twelve years of blogging — Reflections on 12 years of consistent technical blogging.
Originally posted on marconak-matej.medium.com.