[KARAF-5989] Error while sending email because of javax.activation

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.2.1
• Fix Version/s: 4.2.2
• Component/s: karaf
• Assignee: Freeman Yue Fang
• Reporter: Nicolas Dutertry
• Created: 25/Oct/18 13:13
• Updated: 02/Nov/18 07:25
• Resolved: 02/Nov/18 07:25

Description

It is not possible to send email in Karaf 4.2 with javax.mail API. When an email is sent, this exception is raised:

javax.mail.MessagingException: IOException while sending message;
  nested exception is:
     javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed;

I’ve found that it is because the Activation Framework (javax.activation) is not OSGI compliant. In the previous Karaf version (4.1) a servicemix implementation of the Activation Framework was included but it is not the case anymore.

The solution to have a working Activation Framework is to remove javax.activation references in jre.properties and to install the bundle org.apache.servicemix.specs/org.apache.servicemix.specs.activation-api-1.1/2.9.0.

For the future Karaf 4.2.2 can you please:

• Remove javax.activation from jre.properties
• Remove activation-1.1.1.jar from directory lib/boot
• Let the user install org.apache.servicemix.specs/org.apache.servicemix.specs.activation-api-1.1/2.9.0 if needed