anchor.diff:  will still be executed. This option can only disallow any redelivery to
   be executed *after* the stopping of a route/shutdown of Camel has been
   triggered. If a redelivery is dissallowed then a
  -`RejectedExcutionException` is set on the link:exchange.html[Exchange]
  +`RejectedExecutionException` is set on the link:exchange.html[Exchange]
   and the processing of the link:exchange.html[Exchange] stops. This means
   any consumer will see the link:exchange.html[Exchange] as failed due the
   `RejectedExecutionException`.
  
positive.code: ----
  // will use original body
  errorHandler(deadLetterChannel("jms:queue:dead")
     .useOriginalMessage().maximumRedeliveries(5).redeliverDelay(5000);
  ----
  
  Then the messages routed to the `jms:queue:dead` is the original input.
  
negative.code: The default redeliver policy will use the following values:
  
  * maximumRedeliveries=0
  * redeliveryDelay=1000L (1 second)
  * maximumRedeliveryDelay = 60 * 1000L (60 seconds)
  * And the exponential backoff and collision avoidance is turned off.
  * The retriesExhaustedLogLevel are set to LoggingLevel.ERROR
  