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https://issues.apache.org/jira/browse/XERCESJ-1592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17314461#comment-17314461
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Martin Lichtin commented on XERCESJ-1592:
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I see this XML string length feature working in Oracle's JDK 8 versions, but
not in any OpenJDK 8 version (e.g. from RedHat or AdoptOpenJDK).
Does the OpenJDK source not have a full merge of XERCESJ-1592?
> schema validation incorrectly treating single character outside of BMP as two
> characters
> ----------------------------------------------------------------------------------------
>
> Key: XERCESJ-1592
> URL: https://issues.apache.org/jira/browse/XERCESJ-1592
> Project: Xerces2-J
> Issue Type: Bug
> Components: XML Schema 1.0 Datatypes
> Affects Versions: 2.11.0
> Environment: Windows 7, Oracle Java JRE 1.7
> Reporter: Martin Honnen
> Priority: Major
> Fix For: 2.12.0
>
>
> When validating the instance document
> http://home.arcor.de/martin.honnen/xml/oneCharInstance1.xml against the
> schema http://home.arcor.de/martin.honnen/xml/oneCharSchema1.xsd Xerces
> reports the following validation error(s):
> "[Error] oneCharInstance1.xml:3:25: cvc-length-valid: Value '?' with length =
> '2'
> is not facet-valid with respect to length '1' for type 'one-char'.
> [Error] oneCharInstance1.xml:3:25: cvc-type.3.1.3: The value '?' of element
> 'test' is not valid."
> The "test" element however contains a single character
> (<test>𐌀</test>), albeit one which is not inside the BMP. In terms of
> the XML specification http://www.w3.org/TR/xml/#dt-character and the schema
> data type specification http://www.w3.org/TR/xmlschema-2/#string there is no
> difference between characters in the BMP and outside of it, each one counts
> as a single character.
> So the sample XML is valid against the sample schema and Xerces should not
> report any error.
> Other validating parsers like Saxon 9.4 EE and XSV
> (http://www.w3.org/2001/03/webdata/xsv?docAddrs=http%3A%2F%2Fhome.arcor.de%2Fmartin.honnen%2Fxml%2FoneCharInstance1.xml+http%3A%2F%2Fhome.arcor.de%2Fmartin.honnen%2Fxml%2FoneCharSchema1.xsd&warnings=on&keepGoing=on&style=xsl#)
> don't report any validation error for the samples named above.
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