Please add an option to the server plugin that, when enabled, causes Glassfish to restart on every webapp redeploy (as opposed to simply reloading the webapp in a separate ClassLoader).
I've summarized my reasoning here: http://stackoverflow.com/questions/6333056/running-webapps-in-separate-processes
See issue 199437 for the equivalent Tomcat RFE.
My mistake. The Tomcat RFE can be found at issue #199439