Java EE Servers
Java EE servers are application servers that implement the Java EE platform technologies.
GlassFish Server Open Source Edition
GlassFish Server Open Source Edition is the reference implementation of the Java EE platform APIs.
The GlassFish Project
The GlassFish project is the open-source basis for GlassFish Server.
Other Java EE Servers
There are several other popular Java EE servers used by developers and enterprises.