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https://issues.apache.org/jira/browse/XERCESJ-1579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13476823#comment-13476823
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Octavian Nadolu commented on XERCESJ-1579:
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You are right, if a smaller value is used, for example 256, the test will work.
A quick fix that can be done in Xerces is to limit the maxOccurs to 256 for
example. If the maxOccurs value exceed this limit you can set the maxOccurs to
unbounded, and maybe report an warn. The fix can be done in the
XSAttributeChecker, on checkAttributes method.
> Possible infinite loop while validating a schema that contains complex type
> restrictions
> ----------------------------------------------------------------------------------------
>
> Key: XERCESJ-1579
> URL: https://issues.apache.org/jira/browse/XERCESJ-1579
> Project: Xerces2-J
> Issue Type: Bug
> Components: XML Schema 1.1 Structures
> Reporter: Octavian Nadolu
> Priority: Critical
>
> There seems to be an infinite loop while validating the schema with "full
> schema checking" and XML Schema 1.1 features, on the xml-schema-1.1-dev
> branch.
> You can reproduce the issue on the xml-schema-1.1-dev branch, using the
> jaxp.SourceValidator as follows:
> jaxp.SourceValidator -xsd11 -f -a particlesIe003.xsd
> Schema: particlesIe003.xsd
> {code}
> <?xml version="1.0"?>
> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";
> targetNamespace="http://xsdtesting"; xmlns:x="http://xsdtesting";
> elementFormDefault="qualified">
> <xsd:complexType name="base">
> <xsd:choice>
> <xsd:element name="e1" minOccurs="0"
> maxOccurs="unbounded"/>
> <xsd:element name="e2" minOccurs="0"
> maxOccurs="unbounded"/>
> </xsd:choice>
> </xsd:complexType>
> <xsd:complexType name="testing">
> <xsd:complexContent>
> <xsd:restriction base="x:base">
> <xsd:choice>
> <xsd:element name="e1" minOccurs="1"
> maxOccurs="9999999"/>
> <xsd:element name="e2" minOccurs="1"
> maxOccurs="9999999"/>
> </xsd:choice>
> </xsd:restriction>
> </xsd:complexContent>
> </xsd:complexType>
> <xsd:element name="doc" type="x:testing"/>
> </xsd:schema>
> {code}
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