#spring boot
17 articles tagged spring boot, from Java, System Design, Java Engineering. Latest: “Java 25's Compact Object Headers: I Measured the Real Savings So You Don't Have To”.
Java 25's Compact Object Headers: I Measured the Real Savings So You Don't Have To
JEP 519 shrinks every Java object header from 12 bytes to 8 in JDK 25. I ran real benchmarks on JDK 25.0.3 to measure the actual per-object savings.
System Design: Building a Notification Service for 50 Million Users
A complete system design walkthrough, from blank page to production architecture — fan-out, multi-channel delivery, rate limiting, and retry logic.
The Modular Monolith: The Java Architecture Most Teams Should Be Using
A practical guide to the modular monolith in Java and Spring Boot — package structure, module boundaries, domain events, and why it beats microservices.
Designing the AI Request Pipeline: 8 Layers Between User Input and Your LLM
A production architecture blueprint for every layer between a user's message and a safe, reliable LLM response — with Spring Boot code you can actually use.
We Let Claude Code Refactor Our 200K-Line Java Monolith. Here's the Honest Result.
A real post-mortem on 6 weeks of AI-assisted refactoring — what it got right, what it silently broke, and the hybrid model we actually shipped.
Feature Flags for AI: The Deployment Pattern That Saved Us From 3 Production Disasters
Why LLM features need flags more than anything you've shipped — the four flag patterns that let us swap models, A/B test prompts, and kill broken features fast.
10 Spring Boot Mistakes That Silently Kill Production Apps
A practical breakdown of the most common Spring Boot anti-patterns causing degraded performance, memory leaks, and outages — with before/after code.
Java Developer Roadmap 2026: What to Learn, What to Skip
An opinionated roadmap for Java developers in 2026 — Java 21-24, Spring Boot 3, virtual threads, Spring AI, cloud-native patterns, and what to skip.
Your Spring Boot App Starts in 3 Seconds. With GraalVM Native, It's 80ms.
A no-handwaving guide to compiling Spring Boot 3 apps to native executables — real benchmark numbers, common pitfalls, and when it's actually worth it.
We Replaced Spring WebFlux with Virtual Threads. Here's the Honest Result.
After 3 years of reactive streams in production, we migrated four services from WebFlux to virtual threads. Complexity halved, p99 latency dropped 34%.
Building a Spring Boot Microservices Project from Scratch (Complete Guide)
A complete walkthrough of building a production-ready microservices system with Spring Boot — decomposition, API gateway, service discovery, real code.
Java 21 Virtual Threads: A Practical Guide for Spring Boot Developers
Virtual threads are Java 21's biggest performance upgrade in years, but most guides skip the real details — when to use them, Spring Boot, and pitfalls.
Microservices Done Right: Patterns I've Learned from 12 Years of Enterprise Architecture
Real-world patterns, anti-patterns, and hard lessons delivering microservices for global enterprises — from decomposition to observability done right.
Spring Boot Complete Architecture Guide: From Foundation to Spring AI
An end-to-end guide to Spring Boot architecture for experienced developers — IoC, AOP, security, data, resilience, testing, Spring AI, and deployment.
Spring Boot 3 New Features: What Every Java Developer Should Know
A practical tour of Spring Boot 3's biggest upgrades — native compilation with GraalVM, virtual threads, the Observability API, and Problem Details.
Virtual Threads in Spring Boot: What Changes and How to Use Them
Java 21's virtual threads let Spring Boot handle massive concurrency for I/O-bound work without going reactive — how to enable them, and the pitfalls to avoid.
Modern Java for Backend Developers: The Features That Actually Matter
A practical tour of modern Java features backend developers should use now — virtual threads, pattern matching, records — and why upgrading pays off.