ModificationOperation.ADD_ATTRIBUTE, attr );
List<Modification> mods = new ArrayList<Modification>();
mods.add( mod );
session.modify( new Dn( "ou=Roles,o=MNN,c=WW,ou=system" ), mods, true );
// Now try to retrieve this attribute
Attributes result = MNNCtx.getAttributes( "ou=Roles", new String[]{ "description" } );
assertNotNull( result );