Sorry for my ignorance here, but when I hear the word webserver, I immediately imagine Apache, although I know people use Microsoft\'s IIS too. However since I\'ve been hanging
Glassfish will soon release the modular kernel.
This means that the containers you need start up and shutdown as you need them. I.e no EAR deployed, EJB container won;t start up. This seems to have made it very good for development as it can start and stop very quickly. This takes it a lot closer to development environments like Rails (where redeployment is a massive part of your development)