Access Manager is installed.
Your development environment requires the same installation as outlined in the NetIQ Access Manager 4.5 Installation and Upgrade Guide.
Copy the nidp.jar and NAMCommon.jar files in the following directory of your Identity Server to your development project:
On Linux: /opt/novell/nam/idp/webapps/nidp/WEB-INF/lib
On Windows: C:\Program Files (x86)\Novell\Tomcat\webapps\nidp\WEB-INF\lib