Hello, I think there is a bug with DefaultRoute when using onException since version 4.8.
Exception route processors get never initialized which make the route fail to started later on. I think the problem is there: https://github.com/apache/camel/blame/fa02c9e4879fac119a7f2b4f1b4ff46f646c48eb/core/camel-base-engine/src/main/java/org/apache/camel/impl/engine/DefaultRoute.java#L701 introduce by commit: https://github.com/apache/camel/commit/26a9aa91a2bbb741c948ca8c943a0989da2986fd I should be "p" instead of "processor". "processor" have already been added at line 692. Jonathan Simard The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email by mistake, please notify the sender immediately and do not disclose the contents to anyone or make copies thereof. | Le contenu de ce courriel et de toute pièce jointe est confidentiel. Ils sont destinés uniquement au(x) destinataire(s) nommé(s). Si vous avez reçu ce courriel par erreur, veuillez en informer immédiatement l'expéditeur et ne pas en divulguer le contenu à quiconque, ni en faire des copies.