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Threads Are Not Connections: A Spring Boot Concurrency Incident

Threads Are Not Connections: A Spring Boot Concurrency Incident

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5 min read
Integration testing Spring Boot with Testcontainers, PostgreSQL, Kafka and JUnit 5

Integration testing Spring Boot with Testcontainers, PostgreSQL, Kafka and JUnit 5

Comments 1
5 min read
Secure Your APIs: OAuth2 and JWT for Beginners

Secure Your APIs: OAuth2 and JWT for Beginners

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13 min read
Dead letters in Spring Boot: why RabbitMQ messages end up in the DLQ, and how to replay them

Dead letters in Spring Boot: why RabbitMQ messages end up in the DLQ, and how to replay them

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6 min read
JPA/Hibernate Entity Lifecycle: 4 States Explained Simply! đź’ˇ

JPA/Hibernate Entity Lifecycle: 4 States Explained Simply! đź’ˇ

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3 min read
Nexus Core v1.7.0: Moving from MongoDB-Centric to Multi-Database Architecture

Nexus Core v1.7.0: Moving from MongoDB-Centric to Multi-Database Architecture

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3 min read
How to Build a Production-Ready SaaS with Spring Boot 3, React 18 & Stripe in 2026

How to Build a Production-Ready SaaS with Spring Boot 3, React 18 & Stripe in 2026

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4 min read
Your Kafka Event Was Published. Your Database Transaction Failed. Now What?

Your Kafka Event Was Published. Your Database Transaction Failed. Now What?

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5 min read
Why You Should Hash Refresh Tokens with SHA-256

Why You Should Hash Refresh Tokens with SHA-256

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12 min read
Implement GitHub OAuth2 Authorization Login in Springboot

Implement GitHub OAuth2 Authorization Login in Springboot

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4 min read
Spec Driven Development Kit w/HexaLayered Architecture

Spec Driven Development Kit w/HexaLayered Architecture

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2 min read
Building an Excel download API with TBEG and Spring Boot (Kotlin/Java)

Building an Excel download API with TBEG and Spring Boot (Kotlin/Java)

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8 min read
No citation, no claim: building a RAG backend that refuses to hallucinate"

No citation, no claim: building a RAG backend that refuses to hallucinate"

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4 min read
Optimizing Queries in Spring Data JPA

Optimizing Queries in Spring Data JPA

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2 min read
Building AI Agents with Spring AI — Tool Calling, Memory, and Autonomous Workflows

Building AI Agents with Spring AI — Tool Calling, Memory, and Autonomous Workflows

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12 min read
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