I've written a program that uses the javax.mail jar to send email. The program works fine on my desktop computer - but when moved to another station, the Transport.send() method throws an Unsupported Type Exception. Saying therei s no DCH object for my MIME object. I've seen several posts around with similar problems - the only suggestions are to check the class path. I'm using a jar with all of my mail jars inside, so I don't do any class path setting. Does anyone know of any hardware problems that could cause this? I was able to open outlook on the other station and send a message. Here is a cropped portion of the code...
posted 10 years ago
No DataContentHandler, well the only solution to that is to check your classpath... That's almost always the problem, regardless of how sure you are, I really would go and check it again.
I think in one of the jars somewhere there will be a META-INF/mime.types or mime.defaults file, which IIRC tells you the supported mime-types. Perhaps you have conflicting mime.types files due to the installation of java on that 2nd machine.
I have no java certifications. This makes me a bad programmer. Ignore my post.