@After
  public void stop() throws IOException {
    try {
      manager.stopAllActiveContainers();
    } catch (Exception exception) {
      manager.dumpLogs();
      throw exception;
    } finally {
      try {
        manager.cleanUp();
      } finally {
        announceTest("END");
      }
    }
  }
Stops all containers that were previously started and cleans up their configurations
geode-assembly/src/distributedTest/java/org/apache/geode/session/tests/CargoTestBase.java