Having said this it strikes me how little documentation is available for this feature.
But we're explorers, aren't we?
JavaSSO is based on a file based security provider. The two main files are:
Both exist in the $OH/j2ee/
The most basic task is to add a user. You can - of course try to do this by editing the xml files, but luckily Oracle provides the jazn.jar tool.
Make sure that you use the correct java executable and start it:
You will be asked for the AbstractLoginModule username (oc4jadmin) and its password.
Now we have a user but usually this has to be added to a role before it can do something useful:
java -jar jazn.jar -grantrole users jazn.com andreas
Now the user is added and we will prevent the ugly errors - such as: