What comes in JMS Message object?

Here is data i retrieved from a JMS object call connected to WMQ:

  JMS Message class : jms_text
  JMSType :         null
  JMSDeliveryMode : 2
  JMSExpiration :   0
  JMSPriority :     4
  JMSMessageID :    ID:414d5120514d44332020202020202020ece34b503d2d7428
  JMSTimestamp :    1347271147937
  JMSCorrelationID : ID:414d5120514d44332020202020202020ece34b5005e87120
  JMSDestination :  topic://Cord_1/1
  JMSReplyTo :      null
  JMSRedelivered:  false
  JMS_IBM_PutDate:20120910
  JMSXAppID : QMD3                       
  JMS_IBM_Format : MQSTR  
  JMS_IBM_PutApplType : 26
  JMS_IBM_MsgType : 8
  JMSXUserID : mqufn2     
  JMS_IBM_PutTime : 09590803
  JMSXDeliveryCount : 1
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns6:envelope xmlns:ns2="http://n.org/esb />

Implementation of Message Interface is given in class :  com.ibm.jms.JMSTextMessage