The commercially supported version of GlassFish was known as Oracle GlassFish Server, formerly Sun GlassFish Enterprise Server, and previously Sun Java System Application Server (SJSAS) has a history, along with other iPlanet software, going back to Netscape Application Server. This includes code from other companies such as Oracle Corporation for TopLink Essentials. Ericsson's SIP Servlet support is included, the opensource version of it is SailFish, developing towards JSR-289. In 2010, the difference between the commercial and open source edition was already quite small.