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https://issues.apache.org/jira/browse/CAMEL-22874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18052842#comment-18052842
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Claus Ibsen commented on CAMEL-22874:
-------------------------------------
Have you only noticed this with camel-rest-openapi, maybe try to build a
project that just uses a timer and trigger that exception - the more you can
help narrow down the better
> Error handler in camel-rest-openapi route is invoked twice
> ----------------------------------------------------------
>
> Key: CAMEL-22874
> URL: https://issues.apache.org/jira/browse/CAMEL-22874
> Project: Camel
> Issue Type: Bug
> Components: camel-rest-openapi
> Affects Versions: 4.14.3, 4.17.0
> Reporter: Bjorn Beskow
> Priority: Minor
>
> Starting with 4.14.3, a defined error handler in a route which uses a
> rest-openapi endpoint gets invokes twice (which of course is annoying with
> duplicate logs but can also cause more severe problems if the error handling
> have side effects besides logging).
>
> The simplest way I found to reproduce the error was using the
> camel-spring-boot-examples/openapi-contract-first project:
> Add an error handler to the PetStoreRoute, which produces a log:
>
> {code:java}
> onException(Exception.class)
> .log("Error processing request: ${exception.message}")
> .handled(false); {code}
>
> Modify the GET route to throw an exception:
>
> {code:java}
> from("direct:getPetById")
> .process(e -> {
> throw new RuntimeException("Simulated error get pet");
> });
> {code}
>
> Start the application with spring-boot:run, then trigger the endpoint:
> {code:java}
> curl http://0.0.0.0:8080/myapp/myapi/pet/123 {code}
> The log statement of the exception handler shows up twice (as well as the
> Failed delivery logging).
>
> The problem seem to have started with version 4.14.3 (4.14.2 does not show
> this behavior).
>
> I have tried to debug the problem, but have too narrow knowledge about the
> code base to be of any help (sorry!)
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