Use the Upgrade Tool to transfer configuration information from an Application Server 9.1 or GlassFish Prelude installation to a GlassFish Server Open Source Edition 3.1 installation. Information that is transferred includes data about deployed applications, the file realm, security certificates, and other resource and server configuration settings.
The tool automatically detects the version of the specified source server installation.
Note: Before starting the upgrade process, make sure that both the source server (the server from which you are upgrading) and the target server (the server to which you are upgrading) are stopped.
The following are important terms related to the upgrade process:
Source Domain Directory: the old domain that will be upgraded to the new server. The original domain is not changed; it is copied and the copy is upgraded.
Target Domains Root Directory: the domains directory of installation to which you are upgrading. This can be any directory, but if the source domain is being moved from one SERVER_HOME/domains directory to the other, 3rd part jar files can be copied from the source server to the target server.
Master Password: the master password of the target server. Leave blank for the default.