private void doEntryOperations() {
    Region<String, String> region = cacheRule.getCache().getRegion(regionName);
    for (int i = 0; i < 10; i++) {
      region.put("server-" + i, "server-" + "val-" + i);
    }
  }
Close the CacheClientProxy of the client on the server and verify that ha-stats are closed and
the entry for the region is removed from dispatchedMessagesMap.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/HARegionQueueStatsCloseRegressionTest.java