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https://issues.apache.org/jira/browse/CAMEL-21199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17882715#comment-17882715
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Radovan Netuka commented on CAMEL-21199:
----------------------------------------
Fixed in Jackson 2.18.0 -
[https://github.com/FasterXML/jackson-core/pull/1335.] Once we upgrade to that
version, all that needs to be done is to enable the new option (in Jackson)
COMBINE_UNICODE_SURROGATES_IN_UTF8.
> Camel-jackson not properly marshalling 4-byte characters
> --------------------------------------------------------
>
> Key: CAMEL-21199
> URL: https://issues.apache.org/jira/browse/CAMEL-21199
> Project: Camel
> Issue Type: Bug
> Components: camel-jackson
> Reporter: Radovan Netuka
> Assignee: Radovan Netuka
> Priority: Major
> Fix For: 4.9.0
>
>
> Camel-jackson doesn't handle 4-byte characters well. Marshalling a 4-byte
> Japanese kanji character results in two UTF-16 escapes to be written instead
> of the character itself. While this is ok for emoji an such, it's not for
> natural languages.
> Jackson issue:
> [FasterXML/jackson-core#223|https://github.com/FasterXML/jackson-core/issues/223]
>
> Reproducer:
> {code:java}
> from("file:data?file-name=input.txt&noop=true")
> .log("${body}")
> .unmarshal().json(JsonLibrary.Jackson)
> .log("${body[0]['name']}")
> .marshal().json(JsonLibrary.Jackson, true)
> .log("${body}"); {code}
>
> with the file input.txt containing:
> {code:java}
> [{"name": "システム𩸽"}] {code}
>
> Expected output seen in the log: *"システム𩸽"*
> Actual output seen in the log: *"システム\uD867\uDE3D"*
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