Sorry for re-posting, but the subject of my last post was broken...

Is there any way to use the "unauthenticatedIdentity" feature of "login-config.xml" for secured web applications?

I have a form based authentication, and even if I enter nothing in "j_username"/"j_password", this empty input seems to be interpreted as zero string login/password, but not as empty login.

For application clients, the NULL login works fine:

AppCallbackHandler callbackHandler = new AppCallbackHandler(null, null);
 LoginContext loginContext = new LoginContext ("my_auth_conf", callbackHandler);
 loginContext.login();