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Java 21 Structured Concurrency (Incubator): A Practical Guide with Real-World Examples
1. Introduction Structured Concurrency, introduced as an incubator feature in Java 21, is a modern approach to managing multiple concurrent
Java 21 Sequenced Collections Explained: Ordered List, Set, and Deque for Real-World Applications
1. Introduction Java 21 introduced a powerful enhancement to the Collections Framework called Sequenced Collections. This feature provides a standardized
Java 21 Pattern Matching for Switch – Real-World Guide with Practical Examples
Java 21 Pattern Matching for Switch – Real-World Guide with Practical Examples 1. Introduction Java 21 brings powerful language improvements,
Spring Boot Testing Annotations Explained
1. Introduction In modern Spring Boot applications, testing is an essential component of maintaining reliability, ensuring correctness, and accelerating feature
Spring Boot Validation & Security: Complete Guide
1. Introduction Input validation and authorization are two critical pillars of secure backend application development. In Spring Boot, these capabilities
How to Use Spring Data JPA: Complete Guide to @Entity, @Repository, and JPA Annotations
1. Introduction Data access is a core requirement in any enterprise application. Spring Boot simplifies database interaction through Spring Data
How to Use cacheSignal in React 19: Complete Guide to Server Component Caching
1. Introduction React 19 introduced a powerful new API called cacheSignal for Server Components. As modern React applications rely heavily
How to Use the useEffectEvent Hook in React 19: A Complete Technical Guide
1. Introduction React 19 introduces several improvements to state and side-effect handling, and one of the most notable additions is
How to Use the React 19 <activity> Activity Component: Full Guide with Real Examples</activity>
1. Introduction React 19 introduced several new capabilities aimed at improving performance, interactivity, and developer experience. One of the most
Designing Scalable Event-Driven & Reactive Microservices Architecture in Spring Boot
1. Introduction In today’s fast-paced software landscape, systems must be responsive, scalable, and maintainable. Traditional monolithic architectures often fail to
Building Cloud-Native and Serverless Applications with Java and Spring Boot
1. Introduction As enterprise systems continue to scale and evolve, traditional monolithic Java applications often struggle to meet modern performance,
Scaling Spring Boot on ECS with a Shared PostgreSQL Database: Patterns for Safe Concurrency
Multiple identical application containers talk to a single Postgres DB. Without coordination you risk: Goal: ensure correctness (no data corruptionAll Stories
Java 25 Records and Sealed Classes Explained with Real-World Examples and Best Practices
Java 25 Records and Sealed Classes Explained with Real-World Examples and Best Practices 1. Introduction Java 25 continues to refine
Mastering JDK 25: Practical Guide to New Java 25 Features With Real-World Implementation Examples
1. Introduction Java 25 (JDK 25) continues the platform’s evolution with improvements that enhance performance, developer productivity, and application reliability.
How the SSL/TLS Handshake Works: Step-by-Step Guide with Spring Boot & Java Code
1. Introduction The SSL/TLS handshake is the foundation of secure communication between clients and servers. Before any encrypted data can
Spring Boot Mutual TLS Tutorial: Secure REST Calls with RestTemplate (Step-by-Step Guide)
1. Introduction Mutual TLS (mTLS) is an authentication mechanism that ensures both the client and the server verify each other’s
Spring Boot One-Way TLS: Secure HTTPS Calls with RestTemplate Explained
1. Introduction Transport Layer Security (TLS) is essential for protecting data exchanged between services. In many enterprise systems, microservices need
Mastering Spring Boot Configuration and Environments: @Profile, @PropertySource, and Conditional Annotations Explained
1. Introduction In modern Spring Boot applications, managing configurations and environments effectively is critical for building flexible, scalable, and maintainable
Mastering Spring Boot Web & REST Annotations: A Complete Guide with Examples
1. Introduction In modern web development, Spring Boot has become a go-to framework for building robust and scalable RESTful APIs.
Spring Boot Dependency Injection and Stereotypes Explained with Practical Code Examples
1. Introduction In modern enterprise applications, Dependency Injection (DI) and Stereotypes play a key role in building maintainable, testable, and
Mastering Spring Boot Core Annotations: A Complete Guide with Examples
1. Introduction Spring Boot simplifies Java application development by reducing boilerplate code and providing a powerful set of annotations to