# The List Of Certified Java EE 6 Servers--Every Other Month A New Server

There are already 11 certified Java EE 6 servers. It is actually amazing--Java EE 6 was released in 10 Dec, 2009. So we get almost every other month a new Java EE 6 server released. But: there are also servers available like Siwpas which are not certified, but are also working well (at least do not smoke after booting).

I smoke-tested some of them:

Caucho Resin
JBoss
Tomcat / Tom EE
WebLogic
Siwpas
…even in the clouds


I did not tested GlassFish explicitly, but the ServerSmokeTest, x-ray as well as all Rethinking Best Practices projects were developed and tested on GlassFish.