This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
yes j2ee lets you use any available Authentication mechanism. if you spechally need AD refer to M$ documents , also check the follwing link which lead you to an article in IBM site about LDAP based authentication in WAS.