Building Read-Write Database Routing in Spring Boot with JPA

Enterprise applications often require the separation of database workloads to improve performance and scalability. Read operations can be directed to…

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MCP for Java Developers: A Practical Tutorial With Spring AI and the MCP Java SDK

The Model Context Protocol finally gives Java a universal plug for AI. Here is how to wire up your first…

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Resolving the “Validation Failed for Query for Method” Error in Spring Data JPA

This article explains how to diagnose and resolve the error “Validation failed for query for method” in Spring Data JPA.…

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Getting Started with TOON Format in Java

Token-Oriented Object Notation (TOON) is a modern data serialization format designed to represent structured data in a compact, human-readable, and…

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OAuth 2.1 and the Death of Implicit Flow: What Every Java Developer Building Auth Needs to Update

OAuth 2.1 consolidates years of security best practices and formally retires the implicit grant, the resource owner password credentials grant,…

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Running Parallel Instances of Spring Boot Applications in IntelliJ

Running multiple instances of a Spring Boot application can be beneficial for testing interactions, configurations, and resilience patterns. With IntelliJ…

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Apache Seata: Distributed Transaction Management Tutorial

In modern microservices systems, ensuring data consistency across multiple independently deployed services requires a structured approach to distributed transaction management.…

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Spring Boot 404 Redirect to Single Page Application

Single-page application (SPA) such as those built with React, Angular, or Vue handle routing on the client side. When deployed…

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Understanding and Fixing Sonar’s Serialization Warning in Java

When working with Java applications, especially in enterprise environments, static code analysis tools like Sonar often raise warnings related to…

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