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Bug #5495
closed
java.lang.UnsupportedOperationException: Cannot copy a variable reference whose binding is unknown
Status:
Closed
Priority:
Normal
Assignee:
-
Category:
s9api API
Sprint/Milestone:
-
Start date:
2022-05-18
Due date:
% Done:
0%
Estimated time:
Legacy ID:
Applies to branch:
10, 11, trunk
Fix Committed on Branch:
10, 11, trunk
Fixed in Maintenance Release:
Platforms:
Java
Description
Issue : We are getting below " binding is unknown " exception as in stackTrace while using Saxon-HE 10.8 and 11.3. With version 10.7 no regression is found.
Analysis:
I think the issue is at "/" in xsl:template of our source.xml file. It used to work till 10.7
Steps to reproduce :
Execute command below command using attached source.xml and myXsl.xsl files
java -jar saxon.jar -s:source.xml -xsl:myXsl.xsl
using Saxon-HE 10.8 or higher .
source.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<servlet-mapping>
<servlet-name>MyServlet</servlet-name>
<url-pattern>/servlet/MyServlet/*</url-pattern>
</servlet-mapping>
myXsl.xsl file:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0"
xmlns="http://java.sun.com/xml/ns/javaee"
xpath-default-namespace="http://java.sun.com/xml/ns/javaee">
<xsl:output method="xml" indent="no" encoding="UTF-8"/>
<xsl:param name="servletName"/>
<xsl:param name="urlPattern" select='concat("/servlet/",$servletName,"/*")'/> <!-- Default to normal servlet URL pattern -->
<xsl:template match="servlet-mapping[servlet-name=$servletName] /
url-pattern[position()=last()]">
</xsl:template>
</xsl:stylesheet>
StackTrace :
java.lang.UnsupportedOperationException: Cannot copy a variable reference whose binding is unknown
at net.sf.saxon.expr.GlobalVariableReference.copy(GlobalVariableReference.java:43)
at net.sf.saxon.expr.Atomizer.copy(Atomizer.java:348)
at net.sf.saxon.expr.GeneralComparison20.copy(GeneralComparison20.java:43)
at net.sf.saxon.expr.FilterExpression.copy(FilterExpression.java:1183)
at net.sf.saxon.expr.SlashExpression.copy(SlashExpression.java:659)
at net.sf.saxon.pattern.GeneralNodePattern.makeTopNodeEquivalent(GeneralNodePattern.java:61)
at net.sf.saxon.pattern.GeneralNodePattern.<init>(GeneralNodePattern.java:47)
at net.sf.saxon.expr.SlashExpression.toPattern(SlashExpression.java:855)
at net.sf.saxon.expr.sort.DocumentSorter.toPattern(DocumentSorter.java:249)
at net.sf.saxon.pattern.PatternMaker.fromExpression(PatternMaker.java:45)
at net.sf.saxon.pattern.PatternParser30.parsePattern(PatternParser30.java:130)
at net.sf.saxon.pattern.Pattern.make(Pattern.java:59)
at net.sf.saxon.style.StyleElement.makePattern(StyleElement.java:723)
at net.sf.saxon.style.XSLTemplate.prepareAttributes(XSLTemplate.java:371)
at net.sf.saxon.style.StyleElement.processAttributes(StyleElement.java:594)
at net.sf.saxon.style.StyleElement.processAllAttributes(StyleElement.java:531)
at net.sf.saxon.style.XSLTemplate.processAllAttributes(XSLTemplate.java:428)
at net.sf.saxon.style.PrincipalStylesheetModule.processAllAttributes(PrincipalStylesheetModule.java:589)
at net.sf.saxon.style.PrincipalStylesheetModule.preprocess(PrincipalStylesheetModule.java:366)
at net.sf.saxon.style.Compilation.compilePackage(Compilation.java:288)
at net.sf.saxon.style.StylesheetModule.loadStylesheet(StylesheetModule.java:252)
at net.sf.saxon.style.Compilation.compileSingletonPackage(Compilation.java:113)
at net.sf.saxon.s9api.XsltCompiler.compile(XsltCompiler.java:851)
at net.sf.saxon.Transform.doTransform(Transform.java:753)
at net.sf.saxon.Transform.main(Transform.java:82)
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