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https://issues.apache.org/jira/browse/CAMEL-12318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16394764#comment-16394764
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Xilai Dai commented on CAMEL-12318:
-----------------------------------

[~sdirbach] Thanks for point out this new option!

[~davsclaus] The *Fix Version* can be set to 2.19.0, as the 
stopOnAggregateException option is introduced there and I've checked it works.

> Exception from aggregate() of AggregationStrategy has been hiden since Camel 
> 2.16.x
> -----------------------------------------------------------------------------------
>
>                 Key: CAMEL-12318
>                 URL: https://issues.apache.org/jira/browse/CAMEL-12318
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.16.5
>         Environment: Java 8
>            Reporter: Xilai Dai
>            Assignee: Claus Ibsen
>            Priority: Major
>             Fix For: 2.21.0
>
>
> In case of any exception thrown from aggregate() of the custom 
> AggregationStrategy class, the exception is hiden by Camel core and couldn't 
> be catched by any errorhandler.
> A simple use case project is created for easy reproduce this issue, 
> https://github.com/xldai/test/tree/master/test-multicast
> With setting camel.ver to 2.15.x in the pom.xml, the Exception is thrown as 
> expected:
> {code:java}
> Caused by: java.lang.RuntimeException: Deliberate Exception
>         at 
> beans.FD_MulticastAggregator.aggregate(FD_MulticastAggregator.java:16)
>         at 
> org.apache.camel.processor.MulticastProcessor.doAggregateInternal(MulticastProcessor.java:848)
>         at 
> org.apache.camel.processor.MulticastProcessor.doAggregate(MulticastProcessor.java:830)
>         at 
> org.apache.camel.processor.MulticastProcessor$AggregateOnTheFlyTask.aggregateOnTheFly(MulticastProcessor.java:489)
>         at 
> org.apache.camel.processor.MulticastProcessor$AggregateOnTheFlyTask.run(MulticastProcessor.java:394){code}
> With setting camel.ver to higher than 2.16.x in the pom.xml, the Exception is 
> not exposed anymore.
> Looking into the commit changes, seems this is happening after the changes of 
> CAMEL-8587.



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