Web Application WAR file -> Filter Mapping tabbed pane -> Edit Filter List button
In the Servlet Filters dialog box, you can edit the list of to include in this WAR file.
In the Servlet Filters pane, click the Add Filter button to add a servlet filter to the WAR file.
Select a filter class from the Filter Class column. If the Filter class drop-down list is empty, return to the Filter Mapping tabbed pane. Click Add to add filter to the WAR File.
Enter a display name for the servlet filter in the Filter Name column.
Click the rightmost column labeled with the folded paper icon to enter a description of the filter.
In the Initialization Parameters Referenced in Filters pane, click the Add Parameters button to add the initialization parameters for the filter class currently selected in the Filter Class column.
In the Coded Parameter column, enter the name of the parameter as it appears in your code.
You can add default values for your parameters at this point in the Value column, or you can add the values after your web component is created.
Click the rightmost column labeled with the folded paper icon to enter a description for each parameter.
To delete a filter, select the row containing the filter class and click the Delete Filter button in the Servlet Filters pane. A confirmation dialog will ask you if you really want to delete the filter.
To delete a parameter, select the row containing the parameter and click the Delete Parameter button in the Initialization Parameters pane. A confirmation dialog will ask you if you really want to delete the parameter.