Oracle GlassFish Server 3.0.1 Administration Guide

About Monitoring for Add-on Components

An add-on component typically generates statistics that GlassFish Server can gather at runtime. Adding monitoring capabilities enables an add-on component to provide statistics to GlassFish Server in the same way as components that are supplied in the GlassFish Server distributions. As a result, you can use the same administrative interfaces to monitor statistics from any installed GlassFish Server component, regardless of the origin of the component.