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• Listeners

Lets you create a new listener, add an existing listener to the deployment descriptor, or remove the selected listener from the deployment descriptor.

• Security

Lets you define security roles and security constraints.

• Environment

Lets you add or remove the name of a Web application environment variable to the deployment descriptor.

• Reference

Lets you add or remove the name of an enterprise bean reference to the deployment descriptor. There are 5 types of references you can define on this page:

1. EJB
2. EJB Local (J2EE 1.3 only)
3. Resource
4. Resource Environment (J2EE 1.3 only)
5. JSP Tag Library