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https://issues.apache.org/jira/browse/COCOON-2352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15574444#comment-15574444
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Francesco Chicchiriccò commented on COCOON-2352:
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Ben, I have applied your further PR in [1] but I have unfortunately noticed
later that the test is failing in this assertion:
assertTrue(Arrays.equals(expectedValue, encoder.encode('\uDF40')));
Unfortunately, I have noticed this *after* committing to COCOON_2_1_X, but I
have stopped myself right before deploying the updated SNAPSHOT artifact
(thanks Maven and the surefire plugin!).
Does your test case need to be updated as well?
[1] http://svn.apache.org/viewvc?rev=1764819&view=rev
> XMLEncoder doesn't support Unicode surrogate pairs
> --------------------------------------------------
>
> Key: COCOON-2352
> URL: https://issues.apache.org/jira/browse/COCOON-2352
> Project: Cocoon
> Issue Type: Bug
> Components: * Cocoon Core, Blocks: Serializers
> Affects Versions: 2.1.12
> Reporter: Ben Fortuna
> Assignee: Francesco Chicchiriccò
> Fix For: 2.1.13
>
>
> Whilst investigating an issue with the Sling project and support for emoji
> characters, I've come to notice that the XMLEncoder used by HTMLSerializer
> doesn't support Unicode surrogate pairs to represent higher order unicode
> characters.
> A simple unit test that demonstrates this issue is here:
> https://github.com/micronode/whistlepost/blob/master/whistlepost-rewrite-lib/src/test/groovy/org/apache/cocoon/components/serializers/encoding/XMLEncoderTest.groovy
> More background info here also: SLING-5973
> This seems to have been identified/addressed in other Apache projects also:
> https://issues.apache.org/jira/browse/THRIFT-3403?jql=text%20~%20%22surrogate%20pairs%22
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