[jira] [Created] (XERCESJ-1687) XSD 1.1 validation with xs:assert is not thread safe

["Stephan Trebels (JIRA)" <xe...@xml.apache.org>]

Stephan Trebels created XERCESJ-1687:
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             Summary: XSD 1.1 validation with xs:assert is not thread safe
                 Key: XERCESJ-1687
                 URL: https://issues.apache.org/jira/browse/XERCESJ-1687
             Project: Xerces2-J
          Issue Type: Bug
          Components: XML Schema 1.1 Structures
    Affects Versions: 2.12.0
         Environment: java 8 / java 9
            Reporter: Stephan Trebels
            Priority: Critical


The XSD 1.1 validation code uses eclipse webtools xpath to validate assertions. The PsychoPath XPath 2.0 engine has a bug in ResultSequenceFactory, which invalidates correct execution in all parallel invocation of XSD 1.1 validation. 

This issue affects completely unrelated schemas and input XML, as long as both use assertions. The effect is a lot of spurious assert violations.  The issue is visible even if only two threads are used in parallel.

https://bugs.eclipse.org/bugs/show_bug.cgi?id=527812



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