private void startLocatorDistributedSystem(Properties props) {
    // Start start the locator with a LOCATOR_DM_TYPE and not a NORMAL_DM_TYPE
    System.setProperty(InternalLocator.FORCE_LOCATOR_DM_TYPE, "true");
    try {
      getSystem(props);
    } finally {
      System.clearProperty(InternalLocator.FORCE_LOCATOR_DM_TYPE);
    }
  }
@deprecated Please use {@link DistributedRule} and Geode User APIs or {@link ClusterStartupRule}
            instead.
geode-dunit/src/main/java/org/apache/geode/internal/cache/wan/AsyncEventQueueTestBase.java