[ANN]: Apache Xerces-J 2.12.1 now available

Hi all,
   The Apache Xerces XML project team is pleased to announce that version 2.12.1 of Apache Xerces-J is now available.

Xerces-J 2.12.1 can be downloaded at: http://xerces.apache.org/mirrors.cgi.

This release is a bug fix release. It fixes few bugs which were present in Xerces-J 2.12.0 and also includes a few other minor enhancements.

Specifically, the changes introduced in this release are:

* Implemented few fixes for XML Schema identity constraints, within Xerces's XML Schema 1.0 and 1.1 validators. [Sandy Gao, Mukul Gandhi]

* When XML Schema 1.1 validations are done, where xs:assert are contained within xs:override, the XPath expressions within xs:assert can't see XML namespace bindings specified at certain locations in schema documents. This release fixes this. [Mukul Gandhi, Patrick Gratz]

* When XML Schema 1.1 validations are done, when the schema document is specified via xsi:schemaLocation attribute in the XML document, when full XPath 2.0 is used with CTA, for certain use cases validation was not occurring correctly. This release fixes this. [Mukul Gandhi, Yitzhak Khabinsky]

* For certain cases, while doing XML Schema 1.1 xs:assert validations, error messages appeared like following 'FOAR0001 - Division by zero'. Modified such error messages, to now contain the character ':' instead of '-' (since, the character '-' can be confused with a negation symbol). [Mukul Gandhi]

* The 'XML Schema 1.1 structures' REC in the section, "3.2.3 Constraints on XML Representations of Attribute Declarations (Schema Representation Constraint: Attribute Declaration Representation)" mentions, '5 If fixed and use are both present, use must not have the actual value prohibited'. This functionality is newly introduced in XML Schema 1.1. Fixed a runtime validation issue for this XSD clause, when XSD 1.1 implementation is invoked in XSD 1.0 mode. [Mukul Gandhi]

* Xerces-J was previously not building from sources when Java 9+ was used. This release fixes this. [Mukul Gandhi, Michael Glavassevich, Thomas Pasch]

* XML Schema 1.1 has introduced the attribute 'ref' on xs:key, xs:unique and xs:keyref. When certain such schema documents were processed by Xerces-J's XSD 1.1 implementation in XSD 1.0 mode, a java.lang.NullPointerException was displayed to the user when the schema document is processed with Xerces sample jaxp.SourceValidator. This release fixes this. [Michael Glavassevich, Mukul Gandhi]

* Fixed minor bugs and made various improvements. [Michael Glavassevich, Mukul Gandhi, Octavian Nadolu]

* Added many new tests to the regression since the previous Xerces release, for Xerces's XML Schema 1.0 and 1.1 implementations. [Mukul Gandhi]

A complete list of JIRA issues resolved in this release is available here:
https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=10520&styleName=Html&version=12346610

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