使用带有Active Directory的JBoss获取角色中的用户列表

If I have a JBoss server which connects to an Active Directory Server using the LdapExtLoginModule, is it possible for my java restful web servlet to take in the name of a Group in Active Directory as a String, and ask the Active Directory Server for a list of Users which are a part of that Group?If I have a JBoss server which connects to an A