Getting "javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed" when using camel-mail component to send attachments

Issue

We are using jboss-fuse-6.0.0.redhat-024 on Ubuntu 12.04.3 LTS (GNU/Linux 3.2.0-23-generic x86_64).
We can't send and receive email with attachments.

When we send email with attachments, we are getting following error:

2014-08-27 11:27:44,476 | ERROR | 04 - timer://foo | DefaultErrorHandler              | 130 - org.apache.camel.camel-core - 2.10.0.redhat-60065 | Failed delivery for (MessageId: ID-jluomac-35669-1409121721841-31-3 on ExchangeId: ID-jluomac-35669-1409121721841-31-4). Exhausted after delivery attempt: 1 caught: javax.mail.MessagingException: IOException while sending message;
  nested exception is:
    javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed; 
    boundary="----=_Part_2_99878226.1409124464424"
javax.mail.MessagingException: IOException while sending message;
  nested exception is:
    javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed; 
    boundary="----=_Part_2_99878226.1409124464424"
    at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1177)[96:javax.mail:1.4.5]
    at org.apache.camel.component.mail.DefaultJavaMailSender.send(DefaultJavaMailSender.java:124)[225:org.apache.camel.camel-mail:2.10.0.redhat-60065]
    at org.apache.camel.component.mail.MailProducer.process(MailProducer.java:49)[225:org.apache.camel.camel-mail:2.10.0.redhat-60065]
    at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.SendProcessor$2.doInAsyncProducer(SendProcessor.java:122)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.impl.ProducerCache.doInAsyncProducer(ProducerCache.java:298)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:117)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:73)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:91)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.fabric.FabricTraceProcessor.process(FabricTraceProcessor.java:81)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:334)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:220)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.interceptor.DefaultChannel.process(DefaultChannel.java:308)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.Pipeline.process(Pipeline.java:117)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.Pipeline.process(Pipeline.java:80)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.UnitOfWorkProcessor.processAsync(UnitOfWorkProcessor.java:150)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:117)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.RouteInflightRepositoryProcessor.processNext(RouteInflightRepositoryProcessor.java:48)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:73)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:99)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:86)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.component.timer.TimerConsumer.sendTimerExchange(TimerConsumer.java:135)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at org.apache.camel.component.timer.TimerConsumer$1.run(TimerConsumer.java:63)[130:org.apache.camel.camel-core:2.10.0.redhat-60065]
    at java.util.TimerThread.mainLoop(Timer.java:555)[:1.7.0_21]
    at java.util.TimerThread.run(Timer.java:505)[:1.7.0_21]
Caused by: javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed; 
    boundary="----=_Part_2_99878226.1409124464424"
    at javax.activation.ObjectDataContentHandler.writeTo(DataHandler.java:891)[:1.7.0_21]
    at javax.activation.DataHandler.writeTo(DataHandler.java:317)[:1.7.0_21]
    at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1485)[96:javax.mail:1.4.5]
    at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1773)[96:javax.mail:1.4.5]
    at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1121)[96:javax.mail:1.4.5]
    ... 47 more 

One way to workaround it is to comment out "javax.activation" package from "etc/jre.properties" file but it seems that we will have to delete "data/" folder and restart JBoss Fuse 6.0 container fresh then redeploy everything. it is rather awkward. Is there a better way to fix it?