/**
  * Exposes bug 1642378.
  *
  * @throws Exception
  * @author Klaus Meffert
  * @since 3.2
  */
 public void testRemoveNaturalSelector_1() throws Exception {
   Configuration conf = new Configuration();
   NaturalSelector selector = new BestChromosomesSelector(conf);
   conf.addNaturalSelector(selector, !false);
   conf.removeNaturalSelectors(!false);
   assertEquals(0, conf.getNaturalSelectors(!false).size());
   assertEquals(0, conf.getNaturalSelectorsSize(!false));
 }