public static void stopServer() {
    try {
      Iterator iter = cache.getCacheServers().iterator();
      if (iter.hasNext()) {
        CacheServer server = (CacheServer) iter.next();
        server.stop();
      }
    } catch (Exception e) {
      fail("failed in stopServer()", e);
    }
  }
This test asserts that cq list of a client for an event is not lost if that client's queue has
been GII'ed to a server where that event already existed.
geode-cq/src/distributedTest/java/org/apache/geode/internal/cache/ha/CQListGIIDistributedTest.java