[jira] [Commented] (CAMEL-24064) camel-jackson3: type converter drops all but the last configured Jackson module and transformers let JacksonException escape unwrapped

["Federico Mariani (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CAMEL-24064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18096410#comment-18096410 ] 

Federico Mariani commented on CAMEL-24064:
------------------------------------------

Pull request: https://github.com/apache/camel/pull/24705

Note: camel-jackson3 was introduced in 4.19.0, so no camel-4.18.x backport is applicable.

_Claude Code on behalf of Croway_

> camel-jackson3: type converter drops all but the last configured Jackson module and transformers let JacksonException escape unwrapped
> --------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CAMEL-24064
>                 URL: https://issues.apache.org/jira/browse/CAMEL-24064
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-jackson
>    Affects Versions: 4.19.0
>            Reporter: Federico Mariani
>            Assignee: Federico Mariani
>            Priority: Major
>
> Two regressions from the Jackson 2 to Jackson 3 port (CAMEL-22857) in camel-jackson3:
> 1. {{JacksonTypeConverters.resolveObjectMapper()}}: when {{CamelJacksonTypeConverterModuleClassNames}} contains multiple module class names, each loop iteration replaces the mapper with a fresh {{JsonMapper.builder().addModule(module).build()}}, so only the last module ends up registered. camel-jackson (Jackson 2) accumulates all modules via {{registerModule}}.
> 2. {{JsonStructDataTypeTransformer}} and {{JsonPojoDataTypeTransformer}} were not migrated to Jackson 3's unchecked {{JacksonException}} (their catch clauses still reference {{IOException}}, which Jackson 3 read/write calls no longer throw). Malformed JSON therefore escapes as a raw {{JacksonException}} instead of being wrapped in {{CamelExecutionException}} with the exchange attached, as {{JsonDataTypeTransformer}} already does.
> Note: camel-jackson3 was introduced in 4.19.0, so the fix only applies to main (no 4.18.x backport).



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