Oracle GlassFish Server is the world's first implementation of the Java Platform, Enterprise Edition (Java EE) 6 specification. Built using the GlassFish Server Open Source Edition, Oracle GlassFish Server delivers a flexible, lightweight, and production-ready Java EE 6 application server.
GlassFish Server Open Source Edition is an open source application server built within the GlassFish community. Oracle GlassFish Server is based on GlassFish Server Open Source Edition. GlassFish Server users benefit from a vibrant community that offers self-support, contributes code and product features, product ideas and feedback, bug reports, and more. Useful community resources are outlined below.