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JWT Login in Spring Boot 4 Without jjwt or a Custom Filter

JWT Login in Spring Boot 4 Without jjwt or a Custom Filter

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8 min read
What I weigh when choosing how to enforce module boundaries

What I weigh when choosing how to enforce module boundaries

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3 min read
ISO 20022 Structured Address Validator in Spring Boot

ISO 20022 Structured Address Validator in Spring Boot

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17 min read
I Built a Free English Dictionary API Using Wiktionary Data extract

I Built a Free English Dictionary API Using Wiktionary Data extract

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4 min read
Can JVM caches speed up Spring Boot on Kubernetes? A JDK 21 and JDK 25 study

Can JVM caches speed up Spring Boot on Kubernetes? A JDK 21 and JDK 25 study

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6 min read
🔀 nginx as a Reverse Proxy: A Practical Guide for Java and Spring Boot Services

🔀 nginx as a Reverse Proxy: A Practical Guide for Java and Spring Boot Services

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6 min read
Spring's Release Cycle in 2026. How AI Broke Everything

Spring's Release Cycle in 2026. How AI Broke Everything

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14 min read
Building Enterprise-Grade Distributed Tracing in a Spring Boot Event-Driven Architecture (ShopEase)

Building Enterprise-Grade Distributed Tracing in a Spring Boot Event-Driven Architecture (ShopEase)

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3 min read
Building AppTracer: a spec-driven time tracker with Angular, Spring Boot and an AI assistant

Building AppTracer: a spec-driven time tracker with Angular, Spring Boot and an AI assistant

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5 min read
PHP to Java 21 Migration in 2026: Manual Rewrite vs AI Coding Agents vs Parity-Gated Replay

PHP to Java 21 Migration in 2026: Manual Rewrite vs AI Coding Agents vs Parity-Gated Replay

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9 min read
Four bugs that silently broke RxDB sync, and how they were fixed

Four bugs that silently broke RxDB sync, and how they were fixed

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8 min read
ASEAN Cross-Border QR Payments in Spring Boot: EMVCo Router

ASEAN Cross-Border QR Payments in Spring Boot: EMVCo Router

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12 min read
Spring AI or LangChain4j? One App, Three Stacks, One Test

Spring AI or LangChain4j? One App, Three Stacks, One Test

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5 min read
Securing Kotlin APIs with OAuth2 and JWT: Notes on a Beginner Friendly Guide

Securing Kotlin APIs with OAuth2 and JWT: Notes on a Beginner Friendly Guide

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2 min read
One dependency for logs, traces and metrics: writing a Spring Boot starter

One dependency for logs, traces and metrics: writing a Spring Boot starter

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4 min read
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