String oldRdn = getRdn( attributes, "cn" );
// rename to objectClass=person
String newRdn = "objectClass=person";
ctx.addToEnvironment( "java.naming.ldap.deleteRDN", "false" );
ctx.rename( oldRdn, newRdn );
// rename back to old Rdn, enable deleteOldRdn,
// must fail with NoPermisionException
ctx.addToEnvironment( "java.naming.ldap.deleteRDN", "true" );
try