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Posted to dev@poi.apache.org by "PJ Fanning (Jira)" <ji...@apache.org> on 2021/10/21 00:06:00 UTC
[jira] [Resolved] (XMLBEANS-495) StackOverflowError when parsing a
large number of characters in an XML element
[ https://issues.apache.org/jira/browse/XMLBEANS-495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
PJ Fanning resolved XMLBEANS-495.
---------------------------------
Resolution: Fixed
> StackOverflowError when parsing a large number of characters in an XML element
> ------------------------------------------------------------------------------
>
> Key: XMLBEANS-495
> URL: https://issues.apache.org/jira/browse/XMLBEANS-495
> Project: XMLBeans
> Issue Type: Bug
> Components: Validator
> Affects Versions: Version 2.6
> Environment: All
> Reporter: Mandy Warren
> Assignee: PJ Fanning
> Priority: Major
> Fix For: Version 5.0.2
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When XMLBeans validates a very long XML String (4000 or so chars), it generates a StackOverFlowError as shown below. In the schema for this element I have defined a pattern and a min/max length but XMLBeans is applying the pattern first before checking the length. The solution is the fix applied to the class RegularExpression in xerces - see https://issues.apache.org/jira/browse/XERCESJ-589 which went into version 2.11.
> <xs:simpleType name="info">
> <xs:restriction base="xs:string">
> <xs:maxLength value="3"/>
> <xs:minLength value="2"/>
> <xs:pattern value="[A-Z0-9]+"/>
> </xs:restriction>
> </xs:simpleType>
> Exception in thread "main" java.lang.StackOverflowError
> at org.apache.xmlbeans.impl.regex.RegularExpression.matchString(RegularExpression.java:1662)
> at org.apache.xmlbeans.impl.regex.RegularExpression.matchString(RegularExpression.java:1872)
> at org.apache.xmlbeans.impl.regex.RegularExpression.matchString(RegularExpression.java:1872)
> at org.apache.xmlbeans.impl.regex.RegularExpression.matchString(RegularExpression.java:1872)
> at org.apache.xmlbeans.impl.regex.RegularExpression.matchString(RegularExpression.java:1872)
> at org.apache.xmlbeans.impl.regex.RegularExpression.matchString(RegularExpression.java:1872)
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