Java

Virtual threads, introduced in Java 19, represent a revolutionary advancement in Java’s concurrency model, fundamentally changing how we approach concurrent programming. Let’s examine their performance characteristics compared to traditional threads through comprehensive benchmarks and real-world scenarios. Performance Comparison Let’s visualize these dramatic differences: Practical Benchmarks Here’s a comprehensive benchmark demonstrating thread creation and execution patterns: … Read more

The migration from Java EE to Jakarta EE presents organizations with a complex set of challenges that span technical, organizational, and strategic domains. Each challenge requires careful consideration and specific mitigation strategies to ensure a successful transition. Technical Challenges This simple-looking change must be applied consistently across hundreds of dependencies while ensuring compatibility between updated … Read more

if you are getting the above error after upgrading from one version of JBoss to another, and you are using Spring, check how you are setting your soapAction in your WebServiceTemplate. After upgrading to WildFly, I found I was getting the above error accessing a SOAP web service that had not really changed. After much … Read more

Hey there, developers! In this enhanced tutorial, we’ll build a Spring RESTful web service using Java 21 and Spring Boot 3, complete with an embedded PostgreSQL database. We’ll then create a client and use JUnit with Jersey Test to thoroughly test our service. Let’s get started! Prerequisites Before we begin, ensure you have the following … Read more

Welcome to the world of Java development! Before you can start writing amazing Java programs, you need to set up your development environment. This involves installing two key components: Let’s get started! Step 1: Install the Java Development Kit (JDK) The JDK is essential for Java development. It provides the compiler, runtime environment, and other … Read more

Okay, here’s how you can install Java 21 (specifically the JDK – Java Development Kit) on Windows. The JDK includes everything you need to run Java applications (the JRE) plus the tools needed to compile and develop them.1 As of April 2, 2025, Java 21 is the latest Long-Term Support (LTS) version, making it a … Read more