Java
Spring Boot Versions Explorer
SpringDiff lets you compare any two Spring Boot versions side by side — starters, properties, auto-configurations, and release notes in one place.
Spring
Java
Spring Boot 4.0 Null Safety: JSpecify Ends a Decade of Fragmentation?
Spring Boot 4.0 adopts JSpecify as its null annotation standard. Find out what changes, why it matters, and how it improves your code with four before/after examples.
Spring
Spring Annotations: The 2026 Essential Cheat Sheet
Master Spring annotations in 2026: from core stereotypes to new features like native resilience, virtual threads support, and null safety.
Spring
Spring Boot: Interfaces or CGLIB?
Learn the trade-offs between using interfaces and CGLIB for AOP proxying in Spring Boot applications.
Spring
Migration from Kotlin to Java, notes
Steps for the migration from Kotlin to Java, notes
Spring
JPA FetchType.Eager is NOT a solution for n+1 queries issue
How to avoid n+1 queries between your entities
Spring
Azure Storage Java tutorial
Learn how to easily integrate Azure Blob Storage into your Java application to store and retrieve markdown blog posts. A step-by-step guide.
Spring
Node and Angular install and update
ℹ️Draft: I only started this post recently, it will be updated soon MacOs Install Node.js With bre you can install node using brew install
Spring
Force the use JAXB with Spring Boot
How to force Spring Boot to use JAXB and not Jackson
Spring
Project checklists
Checklists for your project
Spring
Building a Java Angular application tutorial and best practices
Step-by-step guide to building a full-stack Java and Angular application. Covers setup, deployment, error handling, and best practices for a production-ready app.
Spring
How to force or override the version of a dependency in Maven
Override the version of a third party library in Maven
Spring
Sign-up the newsletter
If you want to get notifications when a new article is updated or added, you can subscribe my newsletter. It would be nice to create a
Spring
Spring Boot 3.1.2: This method cannot decide ... error
Causes and solutions for the Spring Boot 3.1.2 error: This method cannot decide whether these patterns are Spring MVC patterns or not.
Spring
Spring: Autoconfiguration package and the missing JPA Entities (Not a managed type error)
Configure Spring Boot a multi module project with JPA entities in a different module.
Angular
Deploy Angular with Spring Boot in the same executable JAR
Tutorial: How to build an Angular 15 and Spring Boot 3 app in a single JAR. Maven configuration.
Spring
@PostConstruct and @PreDestroy examples in Java
How execute code when your Spring Boot application starts / end
Spring
Deploy a Java Web App in DigitalOcean using GitHub Actions
How to deploy a maven application in DigitalOcean directly from GitHub
Spring
Spring Boot Liquibase Tutorial
Tutorial: use Liquibase with Spring to update your database
Java
How to remember original Design patterns during a technical interview
Can each team member be linked to a Design Pattern?
React
How to deploy a Java and React webapp in one JAR/WAR
How to configure a fullstack React and Spring Boot application
Spring
Spring Boot Kafka example
Learn how to integrate Spring Boot with Kafka using Docker Compose. Includes code for producers, consumers, and error handling.
Spring
Spring Boot OpenAPI generator example
How to generate your REST methods and Spring controllers using OpenAPI / Swagger
Spring
Spring Boot RestTemplate: test GET request with JSON body is not working
How to test your REST GET controller with Spring Boot