// -------------------------------------------------------------------
// now modify entries included by the subentry to have collectiveExclusions
// -------------------------------------------------------------------
Modification modification = new DefaultModification( ModificationOperation.ADD_ATTRIBUTE,
new DefaultAttribute( "collectiveExclusions", "c-ou" ) );
connection.modify( "ou=services,ou=configuration, ou=system", modification );
// entry should not show the c-ou collective attribute anymore
entry = connection.lookup( "ou=services,ou=configuration,ou=system" );
c_ou = entry.get( "c-ou" );