[Bluej-discuss] Problem using submitter -- MIME issues

[Brad Richards]

Hi all,

I had my students use the submitter to E-mail their projects to me 
last semester.  Unfortunately, after updating Java and BlueJ for the 
new semester, the submission process no longer works.  The output 
from the bluej-debuglog file is shown below.  It looks to me like the 
submitter has built the .zip file containing the submitted files, but 
throws an exception when trying to attach it to the outgoing E-mail 
since it can't find the appropriate MIME information.  It must be a 
configuration issue of some sort, since submission works from Macs 
but not the PCs.   Has anyone else encountered this?  More 
importantly, does anyone know how to fix this?

Thanks,

Brad Richards



BlueJ run started: Wed Sep 05 10:10:05 PDT 2007
BlueJ version 2.2.0
Java version 1.6.0_02
Virtual machine: Java HotSpot(TM) Client VM 1.6.0_02-b06 (Sun 
Microsystems Inc.)
Running on: Windows XP 5.1 (x86)
Java Home: C:\Program Files\Java\jdk1.6.0_02\jre
----
Connected to debug VM via dt_socket transport...
Communication with debug VM fully established.
javax.mail.MessagingException: IOException while sending message;
   nested exception is:
	javax.activation.UnsupportedDataTypeException: no object DCH 
for MIME type multipart/mixed;
	boundary="----=_Part_0_10183200.1189012834180"
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:625)
	at 
org.bluej.extensions.submitter.transport.SmtpSession.disconnect(SmtpSession.java:222)
	at 
org.bluej.extensions.submitter.transport.JarSession.disconnect(JarSession.java:159)
	at 
org.bluej.extensions.submitter.SubmitDialog.sendFiles(SubmitDialog.java:362)
	at 
org.bluej.extensions.submitter.SubmitDialog.submitWork(SubmitDialog.java:477)
	at 
org.bluej.extensions.submitter.SubmitDialog.access$500(SubmitDialog.java:14)
	at 
org.bluej.extensions.submitter.SubmitDialog$SubmitThread.run(SubmitDialog.java:609)
Caused by: javax.activation.UnsupportedDataTypeException: no object 
DCH for MIME type multipart/mixed;
	boundary="----=_Part_0_10183200.1189012834180"
	at 
javax.activation.ObjectDataContentHandler.writeTo(DataHandler.java:870)
	at javax.activation.DataHandler.writeTo(DataHandler.java:301)
	at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1350)
	at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1683)
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:585)
	... 6 more