In the Application Server 9.1 domain where you plan to deploy OpenSSO Enterprise server, change the following JVM options either using the Application Server admin console or command-line utility:
Change -Xmx512m to -Xmx1024m.
If the -client jvm-option is set, change it to -server.
If the Java Security Manager is enabled:
Set the following JVM option:
Add the security permissions to the server.policy file, as described in Adding Security Permissions For a Web Container. After you edit the file, restart the web container.