How to log a Processor ERROR with stacktrace using DeadLetterChannel?

[jimi.hullegard]

Hi,



How can I log a Processor ERROR with stacktrace using DeadLetterChannel? Ie I 
have a route with a Processor that throws an Exception of some kind, and the 
route has a DeadLetterChannel configured, that sends the exchange to a "error" 
route. And I would like this Exception to be logged on ERROR level, with 
stacktrace.



My setup, using Camel 2.17.0 and Camel Spring xml, looks something like this:



<errorHandler id="deadLetterErrorHandler" type="DeadLetterChannel" 
deadLetterUri="direct:error" />



<camelContext>
 <route errorHandlerRef="deadLetterErrorHandler">
  [...]
  <process ref="myProcessor" /><!-- This throws an exception in method 
process(Exchange) -->
  [...]
 </route>

 <route>
  <from uri="direct:error" />

  <log logName="com.mycompany" loggingLevel="ERROR" message="Could not handle 
file '${file:name}'" />

  <to 
uri="log:com.mycompany?level=ERROR&amp;showException=true&amp;showCaughtException=true&amp;showStackTrace=true"
 />

  [...]
 </route>
<camelContext>


The expected behaivor is that Camel logs the exception on ERROR logging level, 
with stacktrace. The actual behaivor is that Camel logs the exception like this:



[...] DEBUG org.apache.camel.processor.DeadLetterChannel - Failed delivery for 
(MessageId: 12345 on ExchangeId: 54321). On delivery attempt: 0 caught: 
java.lang.IllegalArgumentException: Exception details...



Ie it logs the exception on DEBUG log level, and without any stacktrace.



What can I do to fix this?



Regards
/Jimi