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

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Later
• Component/s: JAXP (javax.xml.validation)
• Environment: java 8 / java 9
• Assignee: Unassigned
• Reporter: Stephan Trebels
• Created: 28/Nov/17 17:04
• Updated: 18/Jan/18 15:22
• Resolved: 16/Jan/18 14:49

Description

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