Sun Java System Application Server Platform Edition 8.1 2005Q2 Update 2 Developer's Guide

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## Sun Java System Application Server Descriptors

The Application Server uses additional deployment descriptors for configuring features specific to the Application Server. The `sun-application.xml`, `sun-web.xml`, and `sun-cmp-mappings.xml` files are optional; all the others are required.

To check the correctness of these deployment descriptors prior to deployment, see The Deployment Descriptor Verifier.

The following table lists the Application Server deployment descriptors and their DTD files. For complete descriptions of these files, see Appendix A, Deployment Descriptor Files.

Table 3–2 Sun Java System Application Server Descriptors

Deployment Descriptor | DTD File | Description
--- | --- | ---
`sun-application.xml` | `sun-application_1_4-0.dtd` | Configures an entire J2EE application (EAR file).
`sun-web.xml` | `sun-web-app_2_4-1.dtd` | Configures a web application (WAR file).
`sun-ejb-jar.xml` | `sun-ejb-jar_2_1-1.dtd` | Configures an enterprise bean (EJB JAR file).
`sun-cmp-mappings.xml` | `sun-cmp-mapping_1_2.dtd` | Configures container-managed persistence for an enterprise bean.
`sun-application-client.xml` | `sun-application-client_1_4-1.dtd` | Configures an Application Client Container (ACC) client (JAR file).
`sun-acc.xml` | `sun-application-client-container_1_0.dtd` | Configures the Application Client Container.

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