Java Message Service
Java Message Service (JMS) is a Java API that enables applications to create, send, receive, and read messages in a loosely coupled, reliable, and asynchronous manner. It provides a standard interface for message-oriented middleware (MOM) systems, allowing Java applications to communicate via messaging without being tightly bound to specific implementations. JMS supports two messaging models: point-to-point (queues) and publish-subscribe (topics).
Developers should learn JMS when building enterprise applications that require reliable, asynchronous communication between distributed components, such as in microservices architectures, financial systems, or e-commerce platforms. It's particularly useful for decoupling producers and consumers, handling high-volume message processing, and ensuring message delivery guarantees like transactions and durability. JMS is essential for Java-based systems that integrate with messaging brokers like Apache ActiveMQ, IBM MQ, or RabbitMQ (via JMS clients).