Payara Server
Payara Server is an open-source application server derived from GlassFish, designed for deploying and running Java EE (now Jakarta EE) applications. It provides a robust, production-ready platform with enhanced features, performance improvements, and enterprise support compared to its upstream source. It is widely used for hosting web applications, microservices, and enterprise Java systems in various environments.
Developers should learn and use Payara Server when building and deploying Jakarta EE-based applications that require a reliable, supported, and feature-rich application server, especially in production environments where stability and long-term support are critical. It is ideal for enterprises migrating from older Java EE servers, developing microservices with Jakarta EE technologies, or needing enhanced monitoring, clustering, and security features beyond what GlassFish offers.