Problem with JavaMail: don't work after I made it a jar

Question

Hi, My program works fine if I use -classpath to mail.jar and activation.jar but when I jar it i get:
javax.mail.SendFailedException: Sending failed;
nested exception is:
class javax.mail.MessagingException: IOException while sending message;
nested exception is:
javax.activation.UnsupportedDataTypeException: no object DCH for MIME type text/plain; charset=us-ascii
at javax.mail.Transport.send0(Transport.java:218)
at javax.mail.Transport.send(Transport.java:80)
please help

Answer 1

What did you jar?
The archives JavaMail consists of might contain some non-class extra information.
unzip -l /mnt/ntfs/LANGS/java/extjars/mail.jar  |grep -v class
Archive:  /mnt/ntfs/LANGS/java/extjars/mail.jar
  Length     Date   Time    Name
    26991  05-21-99 13:31   META-INF/MANIFEST.MF
        0  05-21-99 13:31   META-INF/
      286  05-21-99 13:31   META-INF/javamail.default.providers
       12  05-21-99 13:31   META-INF/javamail.default.address.map
     1107  05-21-99 13:31   META-INF/javamail.charset.map
      335  05-21-99 13:31   META-INF/mailcap