authenticate null error when trying to implement anonymous user

Note: I should tell you in advance that this line of questioning was out of line. The real answer is that an anonymous user was not needed for my purposes in this case. I just did not want a page on a site to be among those pages which are required to be authenticated/authorized by JAAS prior to allowing entrance. The way to do that is...not use an anonymous user, but instead to make sure that the file that is needed to be authorized

Here are some images detailing what I have done to try and implement the anonymous user. I think the images will be bigger if you click on them. So far all I get is an error.

web.xml







the application


embedded oc4j config











app module config


the error