private void put(Region<String, String> region, String key, String value) {
    region.put(key, value);
    numOfPuts.incrementAndGet();
  }
Client queue size statistic should not go negative when client goes offline.

<p>
TRAC #48571: CacheClientProxy.getQueueSizeStat() gives negative numbers when client goes down.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/ha/HARegionQueueSizeRegressionTest.java