Michael Hermann Malburg created XERCESJ-1619:
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Summary: Restricting a sequence of three elements with final
wildcard to the wildcard alone yields error
Key: XERCESJ-1619
URL: https://issues.apache.org/jira/browse/XERCESJ-1619
Project: Xerces2-J
Issue Type: Bug
Components: XML Schema 1.0 Structures
Affects Versions: 2.11.0
Environment: oXygen 14.1 with Xerces 2.11 sentenced to work with
Windows 7
Reporter: Michael Hermann Malburg
I receive validation errors for #cos-particle-restrict and
#derivation-ok-restriction when restricting a sequence consisting of two
optional elements followed by an wildcard to a wildcard standing alone, see
example for details. The situation turn curious in inspecting the attached file
(attachment "Restriction-2.xsd") which has an intermediate class working fine.
Example (attachment "Restriction-1.xsd")
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema attributeFormDefault="qualified" elementFormDefault="qualified"
targetNamespace="vdpNs"
version="1.0" xml:lang="en" xmlns:vdp="vdpNs"
xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
<xsd:complexType name="TopType">
<xsd:sequence>
<xsd:element maxOccurs="1" minOccurs="0" name="first" type="xsd:int" />
<xsd:element maxOccurs="1" minOccurs="0" name="second" type="xsd:string"
/>
<xsd:any maxOccurs="unbounded" minOccurs="0" namespace="##other"
processContents="skip" />
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="BottomType">
<xsd:complexContent>
<xsd:restriction base="vdp:TopType">
<xsd:sequence>
<xsd:element maxOccurs="0" minOccurs="0" name="first" type="xsd:int"
/>
<xsd:element maxOccurs="0" minOccurs="0" name="second"
type="xsd:string" />
<xsd:any maxOccurs="unbounded" minOccurs="0" namespace="##other"
processContents="skip" />
</xsd:sequence>
</xsd:restriction>
</xsd:complexContent>
</xsd:complexType>
</xsd:schema>
Extract from oXygen's formatted result (belonging both to line 11 = "…
complexType … BottomType …"):
Engine name: Xerces
Severity: error
Description: cos-particle-restrict.2: Forbidden particle restriction:
'any:choice,sequence,all,elt'.
URL: http://www.w3.org/TR/xmlschema-1/#cos-particle-restrict
Engine name: Xerces
Severity: error
Description: derivation-ok-restriction.5.4.2: Error for type 'BottomType'. The
particle of the type is not a valid restriction of the particle of the base.
URL: http://www.w3.org/TR/xmlschema-1/#derivation-ok-restriction
Further observations:
- only forbiding one of elements "first" and "second" validates fine in both
cases
- both examples are validated with success by the W3C validator
- example printed inline above seems minimal in some sense
- changing the wildcard's namespace only leads to slightly differing results
- incrementing all "maxOccurs" values by 1 results in successful validation
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