@Override
      public void run2() throws CacheException {
        Region<Object, Object> region = getRootRegion().getSubregion(name);
        for (int i = 0; i < NB1_NUM_ENTRIES; i++) {
          region.put(i, values[i]);
        }
        assertThat(region.keySet().size()).isEqualTo(NB1_NUM_ENTRIES);
      }
Tests that distributed ack operations do not block while another cache is doing a
getInitialImage.
geode-dunit/src/main/java/org/apache/geode/cache30/MultiVMRegionTestCase.java