I am using the Spring API's JmsTemplate and MappingJackson2MessageConverter (version: spring-jms-4.3.4.RELEASE.jar) to publish messages 
 to an ActiveMQ topic as shown in the below code.
TopicPublisher class:
@Component
public class TopicPublisher {
    @Autowired
    private JmsTemplate jmsTemplate;
    @Autowired
    private MessageConverter messageConverter;
    public void send() {
        Product product = new Product();
        product.setName("abcd");
        product.setPrice(10);
        jmsTemplate.setMessageConverter(messageConverter);
        jmsTemplate.convertAndSend("product.topic", product);
    }
}
MappingJackson2MessageConverter class:
@Configuration
public class JMSTextMessageConverter {
    @Bean
    public MessageConverter jacksonJmsMessageConverter() {
        MappingJackson2MessageConverter mappingJackson2MessageConverter 
             = new MappingJackson2MessageConverter();
        mappingJackson2MessageConverter.setTargetType(MessageType.TEXT);
        mappingJackson2MessageConverter.setTypeIdPropertyName("_type");
        return mappingJackson2MessageConverter;
    }   
}
Now, I want to set few custom headers to the JMS message being published to the topic. I googled and could not find any example which does this. Can you help ?
 
     
    