Java EE (Java Enterprise Edition) General Discussion

Hi,

I need to create a MultiPart Message where the Content-Type for one of the parts will be "application/octet-stream" and its Content-Transfer-Encoding will be "base64". Here's what im looking for:

--=_mixed 005FF75A85256FBE_=
Content-Type: application/octet-stream;
 name=bruton.vcf
Content-Disposition: attachment;
 filename=bruton.vcf
Content-Transfer-Encoding: base64

QkVHSU46VkNBUkQNClgtTE9UVVMtQ0hBUlNFVDpVVEYtOA0KVkVSU0lPTjozLjANClBST0RJRDot

I've tried a couple of things to get this working, first i decided to just add the headers myself in the MimeBodyPart like so:

    Message msg = new MimeMessage(session);

    MimeBodyPart mbp1 = new MimeBodyPart();
    mbp1.addHeader("Content-Transfer-Encoding", "base64");
    mbp1.addHeader("Content-Type", "application/octet-stream");
    mbp1.setText("Hi");
    mbp1.setFileName("test.xml");

   // create the Multipart and add its parts to it
    Multipart mp = new MimeMultipart();
    mp.addBodyPart(mbp1);
    msg.setContent(mp);

But the result of this is that my headers are disregarded and the setText() method sets the Content-Type to plain text and the Encoding to 7 bit. I confirmed the headers are actually being set to the "base64" and "application/octet-stream" by commenting out the setText() but once i put in the setText() method it overrides my desired settings.

The other thing i tried was to set the Content-Type within the DataHandler Object like so:

    MimeBodyPart mbp1 = new MimeBodyPart();
    mbp1.setDataHandler(new DataHandler("text", "application/octet-stream"));
    mbp1.setFileName("test.xml");

But this always results in :

Got Exception: javax.activation.UnsupportedDataTypeException: no object DCH for
MIME type application/octet-stream
javax.activation.UnsupportedDataTypeException: no object DCH for MIME type appli
cation/octet-stream

I saw the javadoc for MailcapCommandMap and i found the "mailcap.default" file in my activation.jar and it already has the "application/octet-stream" value in it. So to make a long story short, i need some help.