JMS Message as a MQRFH2 Message

MQGetMessageOptions gmo = new MQGetMessageOptions();
gmo.options = CMQC.MQGMO_PROPERTIES_FORCE_MQRFH2 + CMQC.MQGMO_FAIL_IF_QUIESCING + CMQC.MQGMO_NO_WAIT;
MQMessage receiveMsg = new MQMessage();
queue.get(receiveMsg, gmo);
if (CMQC.MQFMT_RF_HEADER_2.equals(receiveMsg.format)){
   receiveMsg.seek(0);
   byte[] b = new byte[receiveMsg.getMessageLength()];
   DataInputStream inputStream =  new DataInputStream(new ByteArrayInputStream(b));
   MQRFH2 rfh2 = new MQRFH2(inputStream );
   int strucLen = rfh2.getStrucLength();
   int encoding = rfh2.getEncoding();
   int CCSID    = rfh2.getCodedCharSetId();
   String format= rfh2.getFormat();
   int flags    = rfh2.getFlags();
   int nameValueCCSID = rfh2.getNameValueCCSID();
   String[] folderStrings = rfh2.getFolderStrings();
   for (String folder : folderStrings)
      System.out.println("Folder: "+folder);
      b = new byte[inputStream.available()];
      inputStream.read(b);
      System.out.println("Data: "+new String(b));
}else if (CMQC.MQFMT_STRING.equals(receiveMsg.format)){
   String msgStr = receiveMsg.readStringOfByteLength(receiveMsg.getMessageLength());
   System.out.println("Data: "+msgStr);
}else{
   byte[] b = new byte[receiveMsg.getMessageLength()];
   receiveMsg.readFully(b);
   System.out.println("Data: "+new String(b));
}