@Override
  public void toData(DataOutput out,
      SerializationContext context) throws IOException {
    super.toData(out, context);
    DataSerializer.writeObject(info, out);
    DataSerializer.writeObject(exception, out);
  }
Returns the exception that was thrown while changing the cache configuration.
geode-core/src/main/java/org/apache/geode/internal/admin/remote/CacheConfigResponse.java