javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed; boundary

Question

Currently I\'m inline of writing a code that will be listening to a directory. when the directory is updated with .apk file, I\'ll send a mail with this .apk file to a gmail

Answer 1

I am busy converting a Java 8 project to Java 10. At the same time I have been updating all of the dependencies. I was getting a similar exception and none of the above solutions worked for me.

I have the following in my pom.xml:

    com.sun.mail
    javax.mail
    1.6.1

I did a bit more research and found the following link:

http://www.jguru.com/faq/view.jsp?EID=237257

So I tried adding the following dependency to my pom.xml:

    javax.activation
    activation
    1.1.1
 

That fixed the problem, I was able to send mail with attachments again.