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Spring Annotations Decoded: When to Use @Component, @Controller, @Service & @Repository

By admin March 15, 2025

Write Clean, Layered Code with Intent—Not Just Functionality Struggling to choose between @Component, @Service, @Repository, and @Controller in Spring? You’re not alone. While they all register beans with the Spring…

Fixing the Spring Boot Error: “No Primary or Single Unique Constructor Found for Interface org.springframework.ui.Model”

By admin March 15, 2025

If you’re facing the error “No primary or single unique constructor found for interface org.springframework.ui.Model” while running your Spring Boot project, you’re not alone. This issue often stems from misconfigured…

How to Fix java.lang.NoClassDefFoundError: org/w3c/dom/ls/DocumentLS During JDK 11 to JDK 17 Migration

By admin February 14, 2025

Migrating a Spring Boot application from JDK 11 to JDK 17 can sometimes lead to unexpected runtime errors, especially when dealing with XML parsing and dependencies. One such common error…

Step-by-Step Guide to Implement JWT Authentication in a Spring Boot Application

By admin September 17, 2024

Implementing JWT authentication in a Spring Boot application involves a few essential steps. Here’s a breakdown of how to do it: Steps to Implement JWT Authentication in Spring Boot: 1.…

$maven… Failed to clean project: Failed to delete ..\org.ow2.util.asm-asm-tree-3.1.jar$

maven… Failed to clean project: Failed to delete ..\org.ow2.util.asm-asm-tree-3.1.jar

By admin August 4, 2024

Stopping Your Spring Boot Server Before you start cleaning up your environment, it's essential to stop your server properly. Here’s how you can stop a server using Eclipse and the…