Here is an overview of features and benefits of Sun GlassFish Enterprise Server, previously named Sun Java System Application Server. See the Sun Java System Application Server product home page for more details and for information about previous versions.

Feature	Benefit
Java EE 5 compatible	Implements the latest Java EE 5 technologies that help improve developer efficiency.
Improves developer productivity	Increases developer productivity with simplified Java EE APIs and annotations that reduce the amount of code developers need to write.
Foundation for SOA	Supports JAX-WS 2.0, JAXB 2.0, and Open ESB, providing an open and extensible architecture for collaboration between integration technology and web services in a service-oriented architecture (SOA).
Tools integration	The NetBeans IDE with SOA supports development of Java EE 5 applications (including web modules and EJB 3.0 modules) and provides SOA visual design tools for architects and programmers.
Open source	The code for Sun Java System Application Server 9.x is 100 percent derived from the GlassFish application server.