This figure depicts Java SSO logic flow as follows, upon a request from the Web container:

1. Is the javasso application enabled? If no, return. If yes, go to the next step.

2. Is the token present? If no, redirect to the javasso application then return. If yes, go to the next step.

3. Is the token valid? If no, clear token and return. If yes, assert identity, invoke the login module, and return.

End of description.