@Override
  public void fromData(DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    // should never be called since DSFIDFactory.readInterestResultPolicy is used
    throw new UnsupportedOperationException();
  }
Should only be called by static field initialization in InterestResultPolicy
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/InterestResultPolicyImpl.java