@Override
  public Properties getDistributedSystemProperties() {
    Properties p = new Properties();
    if (!useLocator) {
      p.setProperty(LOCATORS, "");
      p.setProperty(MCAST_PORT, "0");
    }
    return p;
  }
Test that we can have a peer, a server, and a bridge loader for the same region.

Expected order 1 localCache 2 peer 3 server 4 loader
geode-core/src/distributedTest/java/org/apache/geode/cache/ConnectionPoolAndLoaderDUnitTest.java