Task Engine Start causes class loading problems

[Former Member]

Having stopped the task engine first via the taskService.getEngine().stop() which worked like a charm.

We started the task engine again via taskService.getEngine().start()

It looked at first that all is fine as the tasks started running.

We later found that there are some issues with email sending.

 "localizedMessage" : "no object DCH for MIME type multipart/mixed; ....
 "name" : "javax.activation.UnsupportedDataTypeException",

Does anyone know what is the fix? Meanwhile we refrain from using the start script and would need to restart the node which fixes the issue

[geffchang]

What exact Hybris version are you using?

Might be useful: http://www.jguru.com/faq/view.jsp?EID=237257

[Former Member]

We are currently at 6.5

We already referred to the link you mentioned.. it should not be the problem as we only get the issue when we stop and start the task engine in a running environment,

A fresh environment never produced this issue