Cs Maven

If you're working on a Spring Boot application and your REST controller isn't recognizing GET requests, you're not alone. This is a common issue that developers face, often due to…

If you’re working with Spring WebFlux and notice that your controller method is being executed multiple times after adding a filter to the security chain, you’re not alone. This issue…

When developing distributed systems or networked applications in Java, determining the correct IP address of a machine can be challenging—especially on multi-homed systems. In many cases, a machine may have…

If you’re upgrading to JasperReports 5.6+ and encountering deprecation warnings for JRXlsExporter.setParameter, this guide will help you migrate to the updated exporter API. The old JRExporter and setParameter methods are…

If you encounter the java.lang.NoClassDefFoundError: org/codehaus/groovy/control/CompilationFailedException error while compiling a JasperReports template, it means your project lacks the required Groovy library. Here’s how to resolve it: 1. Switch Report Language…

Why Convert ResultSet to Objects? Clean Code: Avoid repetitive manual mapping. Scalability: Handle large datasets efficiently. Type Safety: Leverage Java’s object-oriented design. Method 1: Manual Mapping (Not Recommended for Large…

Initializing an ArrayList in Java is a common task, but doing it concisely can save time and reduce boilerplate code. In this guide, you’ll learn the most efficient ways to…

If you’ve worked with Java serialization, you’ve likely come across the serialVersionUID field. But what is it, and why does it matter? This post demystifies serialVersionUID, explains its role in…

Introduction to String-to-Integer Conversion in Java Converting a String to an int is a common task in Java programming, whether you’re processing user input, parsing files, or handling API responses.…

Introduction to Java Access Modifiers Access modifiers in Java define the visibility of classes, methods, and variables. They play a crucial role in encapsulation, ensuring that data is only accessible…

The Challenge of Stateless JWT Invalidation JSON Web Tokens (JWT) are popular for stateless authentication in Node.js apps. But unlike traditional session IDs stored in cookies, JWTs are self-contained and…

Introduction: The JWT Expiration Challenge JSON Web Tokens (JWT) are widely used for stateless authentication in REST APIs. However, their fixed expiration time presents a dilemma: frequent reauthentication harms user…