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The <sys:service> element is an empty generic element to be extended by GBean and other module typesused to define GBean(s) that are configured and deployed with the web application module. These additional Geronimo services will be deployed when the application is deployed (and stopped when the application is stopped). Normally, the implementation classes for these services are included at the server level and referenced using a dependency element.
<ee:persistence>
The <ee:persistence> XML element uses the Java EE Persistence namespace, and is documented here:
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