openbmp: Unable to parse Messages

I am consuming messages from the “openbmp.parsed.ls_link” Kafka Topic. I am facing difficulty in unwrapping the messages that i am recieving from the topic. I have the option of recieving the messages as of type Object or as type org.springframework.messaging.Message. I tried parsing the payload in both cases by casting to the type org.openbmp.handler.LsLink. But what i got was a classcastexception. I have referred to the link http://www.openbmp.org/#!docs/MESSAGE_BUS_API.md for a description of the message attributes. But i am unable to obtain the individual attributes from the object that i am recieving when reading messages from the mentioned topic. Please guide if possible with code example as to how i can parse the messages. My code for reading messages from the topic is like this.

@EnableBinding(Sink.class) public class CloudStreamConsumer {

private static Logger logger = LoggerFactory
        .getLogger(CloudStreamConsumer.class);


/**
 * Method that receives the Kafka message
 * @param payload
 * @throws Exception
 */
@ServiceActivator(inputChannel = Sink.INPUT)
//@StreamListener(Sink.INPUT)
public void logger(Message<?> payload) throws Exception {
    //logger.info("recieved : " + payload);
    logger.info("Recieved Payload : " + payload.getPayload());
    logger.info("Recieved Headers : " + payload.getHeaders());
    LsLink pbj = (LsLink)payload.getPayload();
    logger.info("Obj = " + pbj.toString());
}

}