Still working with JMS in your enterprise applications? You're not alone. While newer messaging technologies exist, the reality is that many production systems still rely on Java Messaging Service, and Spring Boot 4 just made working with it significantly better. In this hands-on tutorial, I'll walk you through the brand-new JMS Client introduced in Spring Boot 4. Following the same fluent API pattern as the RestClient and JdbcClient from Spring Boot 3.2, this new client replaces the JMSTemplate with clean, readable code that's actually enjoyable to write. We'll build a complete order messaging system from scratch using Apache ActiveMQ Artemis and Docker Compose. 🎯 What You'll Learn: • How to set up a Spring Boot 4 project with JMS and Artemis using Docker Compose • Using the new JMS Client's fluent API to send messages • Creating a custom message converter with Jackson 3's JSONMapper • Implementing a JMS Listener to receive and process messages • Configuring Quality of Service settings (priority, TTL, delivery delay) • Accessing the Artemis web console to inspect your queues 📚 Resources & Links: 🔗 GitHub Repository: 🔗 Spring Boot JMS Documentation: 🔗 Spring Initializr: ⏱️ Chapters: 0:00 - Introduction to JMS Client in Spring Boot 4 1:15 - Why JMS still matters in enterprise applications 2:30 - Creating a new Spring Boot 4 project 4:00 - Setting up Docker Compose for Artemis 6:15 - Building the Order model and messaging service 8:30 - Using the JMS Client fluent API 10:45 - Creating a custom Jackson 3 message converter 13:00 - Building the REST controller endpoint 15:20 - Testing with IntelliJ's HTTP client 17:00 - Viewing messages in the Artemis web console 18:30 - Implementing the JMS Listener 20:15 - Adding priority messages with QoS settings 22:30 - Wrap up and best practices 👍 If you found this helpful, please like and subscribe for more Spring Boot content! #SpringBoot #SpringBoot4 #JMS #JavaMessaging #SpringFramework #Java #ActiveMQ #Artemis #Tutorial 👋🏻Connect with me: Website: Twitter: Github: LinkedIn: Newsletter: SUBSCRIBE TO MY CHANNEL: ❤️