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Editing the Mapping Properties 
Use this procedure to specify the mappings between the servlets and filters to their URL patterns.
You must have added filters and servlets to your WAR.
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1. The Mappings list contains all mappings, that you make here or when editing the mapping properties of the components of the WAR file.
2. If you want to specify a mapping for a servlet:
i. Select the Servlet radio button.
ii. Select a servlet from the available in the Servlet field. The list with the names from which you can select is prepared from the names of the JSPs added to the Web application.
3. If you want to specify a mapping for a filter:
i. Select the Filter radio button.
ii. Select a filter from the available in the Filter field. The list with the names from which you can select is prepared from the names of the filters added to the Web application.
4. Enter a URL in the URL Pattern field to associate the servlet/filter with it.
5. Click the Add, Modify or Remove buttons to add the new, modify or remove existing mappings.
6. Click the Clear button to clear the entries from the Servlet, Filter and URL Pattern fields.
7. Save your project changes.
As a result of this procedure, the user will be able to access different Web resources just using their mappings.
