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More than just a cup of coffee, Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.

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Spring Boot 3.2 + Docker Multi-Stage Builds: Slim Production Images for Microservices

Spring Boot 3.2 + Docker Multi-Stage Builds: Slim Production Images for Microservices

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2 min read
Spring Boot 3.2 + Testcontainers: Reliable Integration Testing with Real Dependencies

Spring Boot 3.2 + Testcontainers: Reliable Integration Testing with Real Dependencies

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3 min read
Spring Deep Dive: Transactions

Spring Deep Dive: Transactions

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7 min read
Java Concurrency Programming Learning Roadmap: Understanding Threads Through Problems

Java Concurrency Programming Learning Roadmap: Understanding Threads Through Problems

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6 min read
How I Built JWT Authentication in Spring Boot (Beginner-Friendly Guide)

How I Built JWT Authentication in Spring Boot (Beginner-Friendly Guide)

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2 min read
"Sistemas não transacionais? Sim, dá pra ter consistência (sem surtar)" – O guia do Saga Pattern, Outbox e idempotência

"Sistemas não transacionais? Sim, dá pra ter consistência (sem surtar)" – O guia do Saga Pattern, Outbox e idempotência

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7 min read
I built Cepify — a free Brazilian postal code (CEP) API, ViaCEP-compatible (Spring Boot 4 / Java 25)

I built Cepify — a free Brazilian postal code (CEP) API, ViaCEP-compatible (Spring Boot 4 / Java 25)

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2 min read
SQL-First Paradigm: Rethinking Persistence Layer Design from First Principles

SQL-First Paradigm: Rethinking Persistence Layer Design from First Principles

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9 min read
Construyendo Arquitecturas Eficientes: Microservicios en Java con Spring Boot Reactivo

Construyendo Arquitecturas Eficientes: Microservicios en Java con Spring Boot Reactivo

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3 min read
Rest Assured Tutorial for Beginners: Testing a Real REST API in Java

Rest Assured Tutorial for Beginners: Testing a Real REST API in Java

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5 min read
301 duplicate IDs in the browser, 0 on the JVM: one real bug, end to end

301 duplicate IDs in the browser, 0 on the JVM: one real bug, end to end

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5 min read
đź§© Your MapStruct Mappers Are Hiding Null Bugs

đź§© Your MapStruct Mappers Are Hiding Null Bugs

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4 min read
GNEISS – GNN-powered CLI that detects architectural decay in Java repos

GNEISS – GNN-powered CLI that detects architectural decay in Java repos

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1 min read
Spring AI: The Senior Dev's Honest Take on Java's AI Moment

Spring AI: The Senior Dev's Honest Take on Java's AI Moment

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13 min read
Multitenancy de verdade num SaaS de PDV: as decisões que você não pode errar

Multitenancy de verdade num SaaS de PDV: as decisões que você não pode errar

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3 min read
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