Jakarta EE
Jakarta EE is an open-source platform for developing enterprise Java applications, providing a set of specifications, APIs, and runtime environments for building scalable, secure, and portable server-side applications. It evolved from Java EE (Enterprise Edition) and is now managed by the Eclipse Foundation under the Jakarta namespace, focusing on cloud-native and microservices architectures. The platform includes components like Servlets, JPA (Java Persistence API), CDI (Contexts and Dependency Injection), and JAX-RS for RESTful web services.
Developers should learn Jakarta EE when building large-scale, distributed enterprise applications that require robustness, security, and integration with legacy systems, such as in banking, e-commerce, or government sectors. It is particularly useful for projects needing standardized APIs for persistence, messaging, and web services, and for teams transitioning to cloud-native development with support for containers and microservices. Using Jakarta EE ensures compatibility with a wide ecosystem of tools and servers like WildFly, TomEE, and Payara.