Can anybody shed some light on it ?
You will need to write a SP Tomcat Authenticator extending BasicAuthenticator rather than FormAuthenticator. I strongly suggest donating that code back to the PicketLink project, Ivan.
Hey Ivan, still planning to donate the authenticator to PL?
It has to be written first
But yes, I will gladly donate the code.
At the moment I do not have the time to do it, so it is on a back burner.