@Override
      public void run() {
        // if the observer was triggered, it would have cleared itself
        assertNull(DistributionMessageObserver.getInstance());

        Region region = getCache().getRegion("region");
        VersionTag tag = ((LocalRegion) region).getVersionTag(0);
        assertEquals(2, tag.getEntryVersion());
      }
Test that we can successfully retry a distributed putAll on an accessor and get the version
information. bug #48205
geode-core/src/distributedTest/java/org/apache/geode/pdx/ClientsWithVersioningRetryDUnitTest.java