tone.setSymbols(symbols, errors);
Name greetingName = new Name("com.linkedin.greetings.api.Greeting");
RecordDataSchema prevGreeting = new RecordDataSchema(greetingName, RecordDataSchema.RecordType.RECORD);
List<RecordDataSchema.Field> oldFields = new ArrayList<RecordDataSchema.Field>();
RecordDataSchema.Field id = new RecordDataSchema.Field(new LongDataSchema());
id.setName("id", errors);
oldFields.add(id);
RecordDataSchema.Field message = new RecordDataSchema.Field(new StringDataSchema());
message.setName("message", errors);
oldFields.add(message);