NetBeans Runtime Inspector

The NetBeans Runtime Inspector facility lets you look at the structure of objects live in the IDE, provided they can be represented as JavaBeans (which many API-related objects can). To use the inspector, Flip to the Runtime tab in the Explorer and look under the NetBeans Runtime node - you will see some important folders in the system filesystem. You will also see the lookup helper.

In the inspector, by default nodes just show up as themselves, but they will show extra children. First of all, their regular children are displayed in a special subnode, to separate them from other things. Other subnodes may be displayed, including: