@Override
  public Properties getDistributedSystemProperties() {
    Properties properties = super.getDistributedSystemProperties();
    properties.put(ConfigurationProperties.SERIALIZABLE_OBJECT_FILTER,
        "org.apache.geode.cache30.MultiVMRegionTestCase$DeltaValue");
    return properties;
  }
Abstract superclass of {@link Region} tests that involve more than one VM.
geode-dunit/src/main/java/org/apache/geode/cache30/MultiVMRegionTestCase.java