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

[wm]

When sending "recover password" email, the email will work for the 1st 2 times. Then I start to get this exception from the 3rd time.

I wonder if it's

-- javax mail problem?

-- build problem?

-- liftweb problem? something related to thread / class-loader?

why it work for 2 time after reboot, and then stop working?

  val scalaVersion = "2.9.1"

  val liftVersion = "2.5"

    "javax.mail" % "javax.mail-api" % "1.5.4",

==========================================================================================

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

boundary="----=_Part_10_2116398195.1447624947482"

at javax.activation.ObjectDataContentHandler.writeTo(DataHandler.java:896)

at javax.activation.DataHandler.writeTo(DataHandler.java:317)

at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1403)

at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1745)

at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1099)

at javax.mail.Transport.send0(Transport.java:189)

at javax.mail.Transport.send(Transport.java:118)

at net.liftweb.util.Mailer$$anon$4$$anonfun$$init$$4.apply(Mailer.scala:204)

at net.liftweb.util.Mailer$$anon$4$$anonfun$$init$$4.apply(Mailer.scala:204)

at net.liftweb.util.Mailer$class.performTransportSend(Mailer.scala:183)

at net.liftweb.util.Mailer$.performTransportSend(Mailer.scala:31)

at net.liftweb.util.Mailer$class.msgSendImpl(Mailer.scala:257)

at net.liftweb.util.Mailer$.msgSendImpl(Mailer.scala:31)

at net.liftweb.util.Mailer$MsgSender$$anonfun$messageHandler$1.apply(Mailer.scala:167)

at net.liftweb.util.Mailer$MsgSender$$anonfun$messageHandler$1.apply(Mailer.scala:164)

at net.liftweb.actor.SpecializedLiftActor$class.execTranslate(LiftActor.scala:320)

at net.liftweb.util.Mailer$MsgSender.execTranslate(Mailer.scala:163)

at net.liftweb.actor.SpecializedLiftActor$class.net$liftweb$actor$SpecializedLiftActor$$proc2(LiftActor.scala:288)

at net.liftweb.actor.SpecializedLiftActor$$anonfun$net$liftweb$actor$SpecializedLiftActor$$processMailbox$1.apply$mcV$sp(LiftActor.scala:210)

at net.liftweb.actor.SpecializedLiftActor$$anonfun$net$liftweb$actor$SpecializedLiftActor$$processMailbox$1.apply(LiftActor.scala:210)

at net.liftweb.actor.SpecializedLiftActor$$anonfun$net$liftweb$actor$SpecializedLiftActor$$processMailbox$1.apply(LiftActor.scala:210)

at net.liftweb.actor.SpecializedLiftActor$class.around(LiftActor.scala:224)

at net.liftweb.util.Mailer$MsgSender.around(Mailer.scala:163)

at net.liftweb.actor.SpecializedLiftActor$class.net$liftweb$actor$SpecializedLiftActor$$processMailbox(LiftActor.scala:209)

at net.liftweb.actor.SpecializedLiftActor$$anonfun$2$$anonfun$apply$mcV$sp$1.apply$mcV$sp(LiftActor.scala:173)

at net.liftweb.actor.LAScheduler$$anonfun$9$$anon$2$$anon$3.run(LiftActor.scala:64)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:745)

22:02:27.653 [pool-4-thread-14] ERROR net.liftweb.util.Mailer - Couldn't send mail

javax.mail.MessagingException: IOException while sending message

at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1141) ~[mail-1.4.4.jar:1.4.4]

at javax.mail.Transport.send0(Transport.java:189) ~[jetty-runner-8.1.10.v20130312.jar:8.1.10.v20130312]

at javax.mail.Transport.send(Transport.java:118) ~[jetty-runner-8.1.10.v20130312.jar:8.1.10.v20130312]

at net.liftweb.util.Mailer$$anon$4$$anonfun$$init$$4.apply(Mailer.scala:204) ~[lift-util_2.9.1-2.5.jar:2.5]

at net.liftweb.util.Mailer$$anon$4$$anonfun$$init$$4.apply(Mailer.scala:204) ~[lift-util_2.9.1-2.5.jar:2.5]

at net.liftweb.util.Mailer$class.performTransportSend(Mailer.scala:183) ~[lift-util_2.9.1-2.5.jar:2.5]

at net.liftweb.util.Mailer$.performTransportSend(Mailer.scala:31) ~[lift-util_2.9.1-2.5.jar:2.5]

at net.liftweb.util.Mailer$class.msgSendImpl(Mailer.scala:257) ~[lift-util_2.9.1-2.5.jar:2.5]

at net.liftweb.util.Mailer$.msgSendImpl(Mailer.scala:31) ~[lift-util_2.9.1-2.5.jar:2.5]

at net.liftweb.util.Mailer$MsgSender$$anonfun$messageHandler$1.apply(Mailer.scala:167) [lift-util_2.9.1-2.5.jar:2.5]

at net.liftweb.util.Mailer$MsgSender$$anonfun$messageHandler$1.apply(Mailer.scala:164) [lift-util_2.9.1-2.5.jar:2.5]

at net.liftweb.actor.SpecializedLiftActor$class.execTranslate(LiftActor.scala:320) [lift-actor_2.9.1-2.5.jar:2.5]

at net.liftweb.util.Mailer$MsgSender.execTranslate(Mailer.scala:163) [lift-util_2.9.1-2.5.jar:2.5]

at net.liftweb.actor.SpecializedLiftActor$class.net$liftweb$actor$SpecializedLiftActor$$proc2(LiftActor.scala:288) [lift-actor_2.9.1-2.5.jar:2.5]

at net.liftweb.actor.SpecializedLiftActor$$anonfun$net$liftweb$actor$SpecializedLiftActor$$processMailbox$1.apply$mcV$sp(LiftActor.scala:210) [lift-actor_2.9.1-2.5.jar:2.5]

at net.liftweb.actor.SpecializedLiftActor$$anonfun$net$liftweb$actor$SpecializedLiftActor$$processMailbox$1.apply(LiftActor.scala:210) [lift-actor_2.9.1-2.5.jar:2.5]

at net.liftweb.actor.SpecializedLiftActor$$anonfun$net$liftweb$actor$SpecializedLiftActor$$processMailbox$1.apply(LiftActor.scala:210) [lift-actor_2.9.1-2.5.jar:2.5]

at net.liftweb.actor.SpecializedLiftActor$class.around(LiftActor.scala:224) [lift-actor_2.9.1-2.5.jar:2.5]

at net.liftweb.util.Mailer$MsgSender.around(Mailer.scala:163) [lift-util_2.9.1-2.5.jar:2.5]

at net.liftweb.actor.SpecializedLiftActor$class.net$liftweb$actor$SpecializedLiftActor$$processMailbox(LiftActor.scala:209) [lift-actor_2.9.1-2.5.jar:2.5]

at net.liftweb.actor.SpecializedLiftActor$$anonfun$2$$anonfun$apply$mcV$sp$1.apply$mcV$sp(LiftActor.scala:173) [lift-actor_2.9.1-2.5.jar:2.5]

at net.liftweb.actor.LAScheduler$$anonfun$9$$anon$2$$anon$3.run(LiftActor.scala:64) [lift-actor_2.9.1-2.5.jar:2.5]

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_60]

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_60]

at java.lang.Thread.run(Thread.java:745) [na:1.8.0_60]

Caused by: javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/alternative; 

boundary="----=_Part_10_2116398195.1447624947482"

at javax.activation.ObjectDataContentHandler.writeTo(DataHandler.java:896) ~[na:1.8.0_60]

at javax.activation.DataHandler.writeTo(DataHandler.java:317) ~[na:1.8.0_60]

at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1403) ~[jetty-runner-8.1.10.v20130312.jar:8.1.10.v20130312]

at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1745) ~[jetty-runner-8.1.10.v20130312.jar:8.1.10.v20130312]

at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1099) ~[mail-1.4.4.jar:1.4.4]

... 24 common frames omitted

[Antonio Salazar Cardozo]

What kind of email are you sending? Could you show us the code that actually

constructs the email that's being sent?

Thanks,

Antonio

[wm]

I just click http://arqiv.org/user_mgt/lost_password

and input the email address. That's all. I didn't change any code.

The only thing I put in Boot.boot is:

    System.setProperty("mail.debug", "true");

    System.setProperty("mail.debug.auth", "true");

the help debug.

The thing puzzles me is that sometime it works, then it stop.

I tried external mail server as well as local installed Postfix, the result is the same.

the first one or two times, it works, then it stop working. showing error:

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

....

[Brett Grace]

What have you tried so far? A Google search for this particular error returns lots of hits with actionable suggestions.

[wm]

Tried many things I can find: e.g.

========================================

in Boot.boot, put this:

    var mc = CommandMap.getDefaultCommandMap().asInstanceOf[MailcapCommandMap];

    mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");

    mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");

    mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");

    mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");

    mc.addMailcap("message/rfc822;; x-java-content- handler=com.sun.mail.handlers.message_rfc822");

    CommandMap.setDefaultCommandMap(mc);

    Thread.currentThread().setContextClassLoader( getClass().getClassLoader() );

    etc.

========================================

As I said, even without these,  what puzzles me is that for the first one or two times, it works, then it stop working. showing error.

Since this is a common error as show by Google search, there maybe some subtle Javax mail bugs not really in liftweb.

BUT I want a work-around for now.

Here is my question:

-- How can I dump the email message generated by Liftweb to a txt file?

I want to use a python program to send it. This Java bug drive me crazy.

[Brett Grace]

The Lift Cookbook has a recipe for logging your email: http://chimera.labs.oreilly.com/books/1234000000030/ch09.html

As for the rest, I think your guesses (build problem [library incompatibility] or class loader) sound reasonable. I can't say I've encountered it, though. If you can create a repo with a Lift app that wakes up, tries to send email, and then trips this bug, somebody will probably take up the challenge of figuring out why.