@Test
 public void save() {
   FieldAccessor.setField(autostartSelector, AUTOSTART_FIELDNAME, true);
   autostartButtonSingletonPersister.save(autostartSelector);
   Assert.assertEquals(1, preferences.entrySet().size());
   Assert.assertEquals("{\"autostart\":true}", preferences.get("json"));
   Assert.assertEquals(AutostartSelector.class.getCanonicalName(), preferenceName);
 }
 @Test
 public void load() {
   autostartButtonSingletonPersister.load(autostartSelector);
   Assert.assertEquals(true, FieldAccessor.getField(autostartSelector, AUTOSTART_FIELDNAME));
 }