@Override public void onTearDown() throws Exception {
  super.onTearDown();
  solRSynchroniser.deleteAll();
}

@ Override public void onTearDown ( ) throws Exception { super . onTearDown ( ) ; solRSynchroniser . deleteAll ( ) ; }
shuts down the test harness , and makes the best attempt possible to delete datadir , unless the system property " solr . test . leavedatadir " is set .
