The Applications window displays a tree outline of the items you are monitoring or can connect to a monitor. The tree outline has four main branches, or nodes:
Local, which contains GlassFish domains, GlassFish instances, and other VMs on the local system.
Remote, which contains connections to remote servers (and the GlassFish resources they host).
VM Coredumps, which contains any VM coredumps loaded into Performance Monitor.
Snapshots, which contains any application or profiler snapshots loaded into Performance Monitor.
For details about the items that can navigate to in the Applications windows, see the online help for Performance Monitor, available at http://wikis.sun.com/display/PerfMonitorOLH.