Sun Java System Access Manager Support on Application Server 9.1

Sun has recently released the Application Server 9.1, Access Manager server ver 7.1 is supported on this version. Access Manager 7.1 can be installed on Application server 9.1 in two ways.

1. Single WAR deployment of Access Manager

2. Installing Access Manager using the Java ES 5 update 1 installer 

You can find the document on how to achieve the same 

Sun Java System Access Manager Policy Agents for Application Server 9.1

There is an agent that is also made available for Application Server 9.1,

You can download the agent from this location

This agent can be  configured by following this documentation