javax.mail & OSGi

[Bryan Hunt]

Does anyone have a working recipe for javax.mail?  The Eclipse Orbit repo has two versions of javax.mail: javax.mail and javax.mail.glassfish.  I have tried both.  If I use javax.mail, I get:

javax.mail.NoSuchProviderException: Unable to locate provider for protocol: smtp

And if I use javax.mail.glassfish, I get:

java.lang.ClassNotFoundException: javax.net.SocketFactory not found by javax.mail.glassfish [8]

I tried setting -runsystempackages: javax.net in my launch.bndrun, but that didn’t help.

In each case, I’m using javax.activation 1.1.0 from Eclipse Orbit.

Bryan

[Peter Kriens]

The only way I got this one to work was to embed javax.mail + activation in a bundle and then front it with a nice DS oriented service API. Not only alleviate this the myriad of class loading hacks in javax.mail, it also allows you to easily register an Email service that is already configured via Configuration Admin.

Of course if you really need the javax.mail API for code you cannot control then you’re out of luck.

Kind regards,

Peter Kriens

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[Bryan Hunt]

Thanks for the suggestion Peter.  I went to download the latest javax.mail from Oracle and found that it is now an OSGi bundle, and it “just works”.  No activation jar required.  What a pleasant surprise!  BTW, I am wrapping it with a DS and metatype :)

Bryan

[Peter Kriens]

That is good to hear, it was painful at the time. What service API do you use for the wrapper? I would like to add one to the OSGi enRoute APIs (and then let it go through the OSGi specification process.)

Kind regards,

Peter Kriens

[Bryan Hunt]

Hi Peter,

Have a look at:

https://github.com/BryanHunt/web-in-a-box/tree/master/server/net.springfieldusa.email.api

https://github.com/BryanHunt/web-in-a-box/tree/master/server/net.springfieldusa.email.comp

Bryan

[Peter Kriens]

Yup, similar :-) I’ve added a builder interface to access some lesser used features like BCC and other headers.

Sigh, should really find the time to edit such a service API to enRoute. I got the feeling lots of people are doing the same thing. :-(

Kind regards,

Peter Kriens

[Paul Bakker]

Peter, are you aware of http://amdatu.org/components/email.html?

Cheers,

Paul

[Peter Kriens]

I guess I should have been but I wasn’t. Interesting how you put the builder on the Message, good idea, makes it more distributable.

As said, we should have MUCH more of these services that all people that make real apps design :-( 

Kind regards,

Peter Kriens

[Bryan Hunt]

FYI, I just ran into the following error:

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

The fix is:

    public void sendMessage(Message message) throws MessagingException {

      ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();

      Thread.currentThread().setContextClassLoader(Transport.class.getClassLoader());

      

      try

      {

        Transport.send(message);

      }

      finally

      {

        Thread.currentThread().setContextClassLoader(contextClassLoader);

      }

    }

Bryan