How to serialize the custom object you are sending in JMS template Convert and Send method

I am using the below mentioned code to publish into a topic. It is of the format convertAndSend(Destination destination, Object message)

    Event event;
    jmsTemplate.convertAndSend(topic, event); 

My current Event interface is something like this,

    public interface Event {

    public boolean isEmpty();

    public AcEventDatafileTransaction getDatafileTransaction();

    public AcEventObjectTransaction getObjectTransaction();

    boolean isDatafileTransaction();

    boolean isObjectTransaction();

    boolean isRdbmsTransaction();

    String getTransactionId();

    }

Its implementation is something like this,

    public class EventPublisherImpl implements Event {
    private final AcTransactionRecord transactionRecord;
    private final Ac ac;
    private final String[] actualTemplates;
    private final String[] curveTemplates;

    public AcEventPublisherImpl(final Ac ac, 
                                final String[] actualTemplates, 
                                final String[] curveTemplates, 
                                final AcTransactionRecord acTransactionRecord) {
        this.ac = ac;
        this.transactionRecord = acTransactionRecord;
        this.actualTemplates = actualTemplates;
        this.curveTemplates = curveTemplates;
    }

    @Override
    public boolean isEmpty() {
        return transactionRecord.isEmpty();
    }

    @Override
    public AcEventDatafileTransaction getDatafileTransaction() {
        if (isDatafileTransaction()) {
          return new AcEventDatafileTransactionPublisherImpl(transactionRecord.getDatafileTransaction());
        }
        return null;
    }


    @Override
    public AcEventObjectTransaction getObjectTransaction() {
        if (isObjectTransaction()) {
          return new AcEventObjectTransactionPublisherImpl(ac, actualTemplates, curveTemplates, transactionRecord.getObjectOperations());
        }
        return null;
    }

    @Override
    public boolean isDatafileTransaction() {
        return transactionRecord.getType() == AcTransactionRecord.DATAFILE_TRANS;
    }

    @Override
    public boolean isObjectTransaction() {
        return transactionRecord.getType() == AcTransactionRecord.OBJECT_TRANS;
    }

    @Override
    public boolean isRdbmsTransaction() {      
      return transactionRecord.getType() == AcTransactionRecord.RDBMS_TRANS;
    }

    @Override
    public String getTransactionId() {
        if (transactionRecord != null) {
            return Integer.toString(transactionRecord.getNumber());
        }
        return "";
    }
  }

How do I convert it into a serializable form?

My whole objective is to publish Event object into topic. For that I am using convertAndSend method. That method requires an object of a serialized class, which I currently dont have. It is what I am trying to achieve. I have looked at examples where a class with few attributes is serialized using message converter https://examples.javacodegeeks.com/enterprise-java/spring/spring-framework-jmstemplate-example/

Please suggest a method through code or point to the appropriate example and how that helps me.