You can get an Access Manager 7.1 WAR file from the following sources:
Downloading the Access Manager 7.1 ZIP file from the Sun Download Site. This ZIP file contains both the Access Manager 7.1 WAR file (amserver.war) and Distributed Authentication UI server WAR file (amauthdistui.war).
Downloading the Access Manager 7.1 WAR file from the Java EE 5 SDK Web Site. A Distributed Authentication UI server WAR file is not available on this site.
Generating an Access Manager 7.1 WAR File Using the Java ES Installer