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For SAP apps, your base action should be the class edu.mit.mortar.controller.action.SAPBaseAction (which is usually the default in the skeleton).
Your app can have any number of entry points. Each of the entry points would have an action that can just be configured in spring to use the class edu.mit.mortar.controller.action.GlobalEntryAction. However, they must be named XXXEntryAction (where XXX is some name you choose), otherwise the session restart mechanism will cause your app to loop infinitely.
The Search Help actions found in mortar are also configured here.
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