Mapping Strategies Without the Magic (Chapter 4)
At the end of the previous chapter, I teased that we were about to dive straight into the heavy machinery of DAO implementation - hooking up Spring Da…
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Spring Batch DB Cluster Partitioning 3.0.0 — distributed partitioning with just a database, now on Spring Boot 4 & Java 21
spring-batch-db-cluster-core 3.0.0 is live on Maven Central. This is the biggest release of the project so far — a full platform upgrade plus a batch …
How I Built JWT Authentication in Spring Boot (Beginner-Friendly Guide)
How I Built JWT Authentication in Spring Boot (Beginner-Friendly Guide) Authentication is one of the first things every backend developer learns when …
Service-to-Service Communication in Microservices: What Every Developer Should Know
I still remember the first time a junior dev I was mentoring asked me, "why did the order service just... hang for 30 seconds and then crash the whole…
Adding Voice to a Java AI Assistant — Whisper, TTS, and the Voice Conversation Loop
How we gave Jarvis the ability to hear and speak — Phase 5 of the Jarvis AI Platform Where We Left Off After Phase 4 , Jarvis could answer questions u…
Stop Rebuilding Exception Handling in Every Spring Boot Project
After working on multiple Spring Boot projects over the years, I noticed an interesting pattern. Every application had different business requirements…
MapStruct vs Immuto: Where the Records Gap Actually Is
A follow-up to Java Records deserve a mapper My earlier post introduced Immuto and made the general case for a mapper designed around Records from day…
Show Dev: Self-reinforcing K-pop data pipeline using Spring Boot and pgvector (Built on OCI Free Tier)
Hi everyone, I'm a backend developer based in Seoul. I built k-cosmos, an interactive web-based 3D music space that maps K-pop tracks based on 768-dim…
Sprout: a Spring-style, Spring-compatible framework for building AI tooling in Java
Your backend already exists. It runs on the JVM, it has services, configuration and tests, and increasingly it needs to do AI things — call a model, e…
Spring AI: The Senior Dev's Honest Take on Java's AI Moment
TL;DR Spring AI is an official Spring project that integrates AI models into Java using familiar patterns: auto-configuration, dependency injection, a…
MCP Java SDK – Build Model Context Protocol servers in Java
Hi HN, I built an open-source Java SDK for building Model Context Protocol servers: https://github.com/6000fish/mcp-java It is intended for Java devel…
Securing Your Spring Boot Architecture: A Pragmatic Approach with Clprolf
Introduction Spring Boot is an incredible framework. It gives developers immense freedom to build and scale applications quickly. However, in large te…
Deploying Spring Boot to AWS EC2 with Docker and GitHub Actions — The Repeatable Way
Deploying a Spring Boot application to AWS EC2 is straightforward once you've done it. Getting there the first time — and repeating the setup on your …
What is the Purpose of the @Autowired Annotation in Spring Boot?
Learn what the @Autowired annotation in Spring Boot is, how dependency injection works, practical examples, best practices, and common mistakes to avo…
Built an AI-Powered Spring Boot Log Analyzer Using RAG + Ollama
I've been working on a log analysis platform that helps debug Spring Boot applications by analyzing logs and stack traces using RAG. https://loganalyz…
Navigating the AI world order as a Java Dev - 1.0.0
(Inserts background music. Into the Spider-Verse: Only one Spiderman, theme in Spotify) Alright, let's do this one more time! This is Abhishek, and I …
The Zero-Drift API Series: Stop Trusting a Green Build You Can't Explain
The Zero-Drift API Series Stop Trusting a Green Build You Can't Explain There is a specific kind of production incident that hurts more than the other…
Why Java + Spring Boot is Still the King of Enterprise Backend (2026)
Why Java + Spring Boot is Still the King of Enterprise Backend (2026) After 13 years building enterprise systems across PayPal, Salesforce, and NCR, I…
Idempotency4j - Java/Spring Boot idempotency library
The last couple of months, I ended up implementing idempotency in 2 different Spring Boot projects back to back. As I was implementing it in the secon…
When Your Full-Stack Framework Gets Deprecated — Planning an OSS Migration from Hilla
The Bad News Every developer dreads the moment: the framework you built your application on is being discontinued. That's exactly what happened to us …