@Override
      public void run() {
        try {
          if (!getRegionAttributes().getDataPolicy().withReplication()
              && getRegionAttributes().getPartitionAttributes() == null) {
            Region<?, ?> root = getRootRegion("root");
            Region<Object, Object> rgn = root.getSubregion(rgnName);
            rgn.create("key", null);
            getSystem().getLogWriter().info("testDistributedPut: Created Key");
          }
        } catch (CacheException e) {
          fail("While creating region", e);
        }
      }
Tests that an entry update is propagated to other caches that have that same entry defined.
geode-dunit/src/main/java/org/apache/geode/cache30/MultiVMRegionTestCase.java