WildFly is a flexible, lightweight, managed application runtime that helps you build amazing applications. WildFly supports the latest standards for REST based data access, including JAX-RS 2, and JSON-P.

Building on Jakarta EE provides rich enterprise capabilities in easy to consume frameworks that eliminate boilerplate and reduce technical burden. The quick boot of WildFly combined with the easy-to-use Arquillian framework allows for test driven development using the real environment your code will be running in. Your test code is separate and simply deployed along side your application where it has full access to server resources.

WildFly takes an aggressive approach to memory management and is based on pluggable subsystems that can be added or removed as needed.

Configuration in WildFly is centralized, simple and user-focused. The configuration file is organized by subsystems that you can easily comprehend and no internal server wiring is exposed. Subsystems use intelligent defaults, but can still be customized to best fit your needs. If you are running in domain mode, the configuration for all servers participating in the domain is specified in a well-organized manner within the same file.