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https://issues.apache.org/jira/browse/CAMEL-22417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18020618#comment-18020618
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Artem edited comment on CAMEL-22417 at 9/16/25 9:43 AM:
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Thanks a lot! I've checked, this issue was already fixed in
https://issues.apache.org/jira/browse/CAMEL-21432
was (Author: JIRAUSER307902):
This issue was already fixed in
https://issues.apache.org/jira/browse/CAMEL-21432
> ErrorHandlerReifier fails with Unsupported definition: null
> -----------------------------------------------------------
>
> Key: CAMEL-22417
> URL: https://issues.apache.org/jira/browse/CAMEL-22417
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 4.8.1
> Reporter: Artem
> Priority: Minor
> Fix For: 4.8.2, 4.14.0
>
> Attachments: OnExceptionMulticastCamel4Example.zip
>
>
> If we use the route that contains _*onException*_ with _handled = true_
> property and add multicast() to it - our rote will fail with {_}Unsupported
> definition{_}.
> It works properly on Camel 3.
> After investigation I found that this is due to code changes in
> _camel-core-processor_ library
> In {{MulticastProcessor}} class now we have LRUCache that initialized with
> size = 0 and it lost all added error handlers.
> I would add some non-zero size. But I also see that such zero cache size is
> the solution for that OOM issue -
> https://issues.apache.org/jira/browse/CAMEL-20835.
> Could you please help to correctly fix the Unsupported definition issue in
> this case.
> *Reproduce:*
> Run the attached example project.
> you will see (for Camel {_}*4.8.1*{_})
> {code:java}
> Caused by: java.lang.IllegalStateException: Unsupported definition: null
> at
> org.apache.camel.reifier.errorhandler.ErrorHandlerReifier.reifier(ErrorHandlerReifier.java:89)
> at
> org.apache.camel.impl.DefaultModelReifierFactory.createErrorHandler(DefaultModelReifierFactory.java:65)
> at
> org.apache.camel.impl.DefaultModelReifierFactory.createErrorHandler(DefaultModelReifierFactory.java:59)
> at
> org.apache.camel.impl.DefaultCamelContext.createErrorHandler(DefaultCamelContext.java:767)
> at
> org.apache.camel.impl.engine.DefaultCamelContextExtension.createErrorHandler(DefaultCamelContextExtension.java:1056)
> at
> org.apache.camel.processor.MulticastProcessor.wrapInErrorHandler(MulticastProcessor.java:1135)
> at
> org.apache.camel.processor.MulticastProcessor.wrapInErrorHandler(MulticastProcessor.java:1103)
> ... 23 common frames omitted {code}
> But if you will change the *_camel.version_* in pom.xml to _*3.20.6*_ it will
> successfully multicast to receivers.
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