title: How to retrieve all distinct values of attribute "title" from LDAP?
body: <p>I am trying to get all the distinct values of a field from LDAP by Java. But I don't know how to do it.</p>
  
  <p>There is an attribute in LDAP called "title". I would like to get all the distinct values of that field. </p>
  
  <p>How can I achieve this?</p>