@Override
      public void run() {
        Region myRegion = getCache().getRegion(regionName);
        for (int i = 1; i <= 20; i++) {
          myRegion.put("Object" + i, "Value" + i);
        }
        myRegion.destroy(key1);
        myRegion.destroy(key2);
      }
Similar to bug #43407 but not reported in a ticket, we want a client that does a get() on a
destroyed entry to end up with a tombstone for that entry. This was already the case but there
were no unit tests covering this for different server configurations and with/without
transactions.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/ClientServerInvalidAndDestroyedEntryDUnitTest.java