SubList and Serialization

I was trying to send message to Apache Kafka from a java program. There is a limit on the number of bytes that are being processed by Kafka.

The Java Program that sends the message to Kafka reads from an Excel file and I have problems when reading large files where the total no of bytes exceeded the kafka byte limit. So I decided to chunk the ArrayList by splitting it into equal chunks using the following code

List <> partionList = new LinkedList<<>>();

for(int i =0; i< origList.size(); i += chunkSize) {
      partionList.add(origList.subList(i,i+Math.min(chunkSize, origList.size.size() - i)));
}
for(List<> dataRows: partionList) {
                KeyedMessage message = new KeyedMessage<>(
                        KAFKA_TOPIC, (key).getBytes(),
                        SerializationUtils
                                .serialize(convertToJsonLogData(dataRows)));
                kafkaProducer.send(message);
              
            }

I got the following error 

org.apache.commons.lang3.SerializationException: java.io.NotSerializableException: java.util.ArrayList$SubList
 at org.apache.commons.lang3.SerializationUtils.serialize(SerializationUtils.java:139)
 at org.apache.commons.lang3.SerializationUtils.serialize(SerializationUtils.java:161)

I got that corrected by changing the below in the first for loop.

I
List -obj-list = new ArrayList -obj-(logDataRows.subList(i, i +  Math.min(chunkSize, origList.size.size() - i)));
  partionList.add(list);