@Override
  public Properties getDistributedSystemProperties() {
    Properties config = new Properties();
    config.put(SERIALIZABLE_OBJECT_FILTER, TestPRKey.class.getName());
    return config;
  }
Confirm that the utils used for testing work as advertised

@since GemFire 5.0
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/PartitionedRegionTestUtilsDUnitTest.java