@After
  public void tearDown() throws Exception {
    if (cache != null) {
      cache.close();
      cache = null;
    }
    if (ds != null) {
      ds.disconnect();
      ds = null;
    }
  }
TRAC #40255: Parameterization of XML configuration file
geode-core/src/integrationTest/java/org/apache/geode/cache30/CacheXmlParameterizationRegressionTest.java