## About J2SE Library Descriptors

See Also

A J2SE library descriptor is an XML file that, when registered in the `layer.xml` file, adds a new class library to the IDE's Library Manager. Whenever the module containing the library descriptor is enabled, the library is present in the Library Manager. For example, Struts support provides the Struts libraries in the Library Manager.

For an example of a scenario where you might create a J2SE library descriptor, see the

See Also
  Creating a J2SE Library Descriptor
  Creating an Action
  Creating a File Type
  Creating a Project Template
  Creating a Window Component
  Creating a Wizard

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