Handle specific exception that is not related to an exchange - exception

I created a custom component for a proprietary service. If this service is down i get noticed via a call of a callback function. I am throwing a custom exception at this point.
Sending exchanges to the producer/ consumer will yield no errors or exceptions (all seems to fine).
So i need to implement an emergency stop if my custom exception is thrown. I read a bit about exception handling in camel. I think i need a context-scoped onException(MyException.class).??? but what then?
Is this working on exceptions that are called without relation to an exchange? If this is working how to handle it. I want to stop certain routes in this case.

here you can find to stop routes from a route: http://camel.apache.org/how-can-i-stop-a-route-from-a-route.html.
If you do the call of the proprietary service in a route you do have an exchange btw.
kind regards,
soilworker

I created a little workaround: I set a boolean i the callback method is called. On each call of process i check this boolean and if true i throw an exception.
With this the exception is within normal camel exception handling and onException could be used.

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But the same doesnt work when do the same on my Aggregator. why?
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I know the thread is too old, but I was also facing a similar issue and found I declared error-channel in header-enricher but not provide 'overwrite="true"' as a parameter. And after providing 'overwrite="true"'it is working as needed. I am surprised why spring integration does not provide an overwrite=true by default.
Let us know this is what solution you did in your old code? So everyone can find out the solution for such a scenario.

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onException(Throwable.class)
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Well, in the end, here is my solution :
from("...")
.doTry()
.to("...")
.doCatch(Exception.class)
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.end()
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HIH

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{
public void ProvideFault(Exception ex, MessageVersion version, ref Message fault)
{
if (ex is FaultException)
return;
// a general message to the client
var faultException = new FaultException("A General Error Occured");
MessageFault messageFault = faultException.CreateMessageFault();
fault = Message.CreateMessage(version, messageFault, null);
}
public bool HandleError(Exception ex)
{
// log the exception
// mark as handled
return true;
}
}
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