Updating Your GlassFish Installation
By woodjr on Feb 28, 2007
Whether you like the cutting-edge functionality of the GlassFish milestone and nightly builds at java.net or the rock-solid stability of Sun's GlassFish-based distributions, there is always something new to try. But what if you want to upgrade your existing GlassFish installation without losing your existing configuration settings?
GlassFish has a built-in "asupgrade" tool which does just that.
Shalini has put together a nice tutorial showing how to use this tool. As Shalini shows, it supports both a GUI and CLI interface and allows either in-place or side-by-side upgrades.