Java JMS ObjectMessage

Question

Hey there
Been struggeling all day + yesterday on how to store a pdf-message into a (Glassfish) jms queue from a Replier-class, and then to retreive it in a Requestor class.
The scenario:
Requestor---sends file to jms/RequestQueue-->
Replier----processes the file-->
Replier---sends pdffile to jms/ReplyQueue-->
Rquestor---retreives jms/RequestQueue and sends it to a browser->
My issue is.
The Replier
String fil = "C:/PDFTEST/"+pdffile+".PDF";
File file = new File(fil);
ObjectMessage outMessage = session.createObjectMessage();
outMessage.setObject(file);
outMessage.setJMSCorrelationID(message.getJMSCorrelationID());
replyProducer.send(outMessage);Everything seems to work from Requestor send to MQ, The Replier above gets the file to process, and to store the File as a ObjectMessage in MQ...But, when the Replier gets the file from MQ it can't get it out as a java.io.File.
ErrorCode:
java.lang.NullPointerException
     at com.edbteamco.common.servlet.OnlineFaktura.invoiceGET(OnlineFaktura.java:273)
     at com.edbteamco.common.servlet.OnlineFaktura.doGet(OnlineFaktura.java:108)The RequestorCode:
queueConnection.start();    
QueueReceiver queueReceiver = queueSession.createReceiver(repQueue, "JMSCorrelationID = '" + jmsCorrelationID + "'");    
msgReceived = (ObjectMessage) queueReceiver.receive(10000);
response.setContentType ("application/pdf");
response.setHeader           ("Content-Disposition", "attachment; filename=\"testfilen.txt\"");
response.setHeader("cache-control", "no-cache");
InputStream in = new FileInputStream((File)message.getObject()); the line **InputStream in = new FileInputStream((File)message.getObject()); ** causes the error
Anyone up for helping?:)

Answer 1

Yes, he gave me the solution, but not how to implement it. I think the documentation is not verry good when it comes to handling files through jms.
I've now tried the following:
InputStream is = new FileInputStream(new File(".....filelocation....."));
long length = file.length();
byte[] bytes = new byte[(int)length];
int offset = 0;
int numRead = 0;
while (offset < bytes.length && (numRead=is.read(bytes, offset, bytes.length-offset)) >= 0)
    offset += numRead;
BytesMessage outMessage = session.createBytesMessage();
outMessage.setJMSCorrelationID(message.getJMSCorrelationID());
outMessage.writeBytes(buffer);
replyProducer.send(outMessage);And when I try to open that file up on my client, I get a nullPointerException:
msgReceived = (BytesMessage) queueReceiver.receive(10000);
// How to read the bytes right???
ServletOutputStream outs = response.getOutputStream();
while (true)
         try {
              byte b = ((BytesMessage)message).readByte();
              outs.write((int)b);
              System.out.println("Byte: " + (int)b);
              catch (MessageEOFException e) {
                   break;
Please help
Cincerely Paul