[XERCESJ-1538] Multithread validation failed in Xerces2 with XML Schema 1.1 support when assert instruction in XSD

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Incomplete
• Affects Version/s: 2.11.0
• Component/s: JAXP (javax.xml.validation)
• Environment: Windows 7 x64, Java 6 Update 26 x64
• Assignee: Unassigned
• Reporter: Denis Orekhov
• Created: 27/Sep/11 14:48
• Updated: 19/Dec/11 19:06
• Resolved: 10/Dec/11 20:31

Description

I'm using Xerces2 Java 2.11.0 (XML Schema 1.1) (Beta) in my app. Schema validation in my app can occurs simultaneously in separate threads.
This is part of my xsd:

<xs:element name="action">
<xs:complexType>
<xs:all>
<xs:element name="main_context" minOccurs="0" />
<xs:element name="navigator" minOccurs="0">
<xs:complexType>
<xs:attribute name="element" type="xs:string" />
<xs:attribute name="refresh" type="xs:boolean" />
</xs:complexType>
</xs:element>
<xs:element name="datapanel" minOccurs="0">
<xs:complexType>
<xs:sequence>
<xs:element name="element" maxOccurs="unbounded"
minOccurs="0">
<xs:complexType>
<xs:sequence>
<xs:element name="add_context" minOccurs="0" />
</xs:sequence>
<xs:attribute name="id" type="xs:string" use="required" />
<xs:attribute name="refresh_context_only" type="xs:boolean" />
<xs:attribute name="skip_refresh_context_only"
type="xs:boolean" />
<xs:attribute name="keep_user_settings" type="xs:boolean" />
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="type" type="xs:string" use="required" />
<xs:attribute name="tab" type="xs:string" />
</xs:complexType>
</xs:element>
<xs:element name="server" minOccurs="0">
<xs:complexType>
<xs:sequence>
<xs:element name="activity" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="add_context" minOccurs="0" />
</xs:sequence>
<xs:attribute name="type" type="xs:string"
use="required" />
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:all>
<xs:assert
test="(count(datapanel) + count(server) =0) or (count(*[position()=1 and name()='main_context']) = 1)" />
</xs:complexType>
</xs:element>

And sometimes I have SAXException with text "cvc-assertion.3.13.4.1: Assertion evaluation ('(count(datapanel) + count(server) =0) or (count(*[position()=1 and name()='main_context']) = 1)') for element 'action' with type '#anonymous' did not succeed.".
I checked my data and schema text before validation error - both is good.