openid4java

openid4java

OpenID 2.0 Java Libraries 

This library allows you to OpenID-enable your Java webapp

http://code.google.com/p/openid4java/

AJAX File Upload Progress for Java

AJAX File Upload Progress for Java Using Commons and XML

Basically, place the progress objects in the session then poll the session.

http://www.codeguru.com/java/article.php/c13913/AJAX-File-Upload-Progress-for-Java.htm