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https://issues.apache.org/jira/browse/XERCESJ-1239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Glavassevich reassigned XERCESJ-1239:
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Assignee: Michael Glavassevich
> The unexpressible union of two attribute wildcards should be reported as an
> error.
> ----------------------------------------------------------------------------------
>
> Key: XERCESJ-1239
> URL: https://issues.apache.org/jira/browse/XERCESJ-1239
> Project: Xerces2-J
> Issue Type: Bug
> Components: XML Schema Structures
> Affects Versions: 2.9.0
> Reporter: Michael Glavassevich
> Assigned To: Michael Glavassevich
> Priority: Minor
>
> If a complex type is derived by extension and both the base and the dervied
> type specify an attribute wildcard the {namespace constraint} of the
> {attribute wildcard} property is the union [1] of the namespace constraints
> of the two wildcards. It's possible that this union can not be expressed,
> for instance if the namespace constraints on the two wildcards are ##other
> and ##local. In such a case we should be reporting an error.
> This bug is causing one test in the W3C XML Schema 1.0 2nd Edition test suite
> to fail:
> msData/wildcards/test328873i.xsd
> It should be noted that the XML Schema 1.0 2nd edition doesn't actually
> specify this constraint. It's a bug in the spec which is going to be
> addressed by the working group at some point in the future. See [2] for more
> information.
> [1] http://www.w3.org/TR/2004/REC-xmlschema-1-20041028/#cos-aw-union
> [2] http://www.w3.org/Bugs/Public/show_bug.cgi?id=4390
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