Sun GlassFish Enterprise Server v3 Application Deployment Guide

Directory Structure

Application and module directory structures must follow the structure outlined in the Java EE specification. During deployment, the application or module is expanded from the archive file to an open directory structure. The directories are named with _jar and _war suffixes.

If you deploy a directory, your directory structure must follow this same convention. For instructions on performing directory deployment, see To Deploy an Application or Module in a Directory Format.