[
https://issues.apache.org/jira/browse/XALANJ-2782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mukul Gandhi resolved XALANJ-2782.
----------------------------------
Resolution: Fixed
I'm resolving this jira issue as fixed. The fix for this jira issue has been
committed to Xalan-J's dev repos xsl3 branch.
> NullPointerException in XSLT 3 code
> -----------------------------------
>
> Key: XALANJ-2782
> URL: https://issues.apache.org/jira/browse/XALANJ-2782
> Project: XalanJ2
> Issue Type: Bug
> Security Level: No security risk; visible to anyone(Ordinary problems in
> Xalan projects. Anybody can view the issue.)
> Components: transformation, Xalan, Xalan-CmdLine
> Affects Versions: The Latest Development Code
> Environment: Windows 11, Adoptium Java 8.422
> Reporter: Martin Honnen
> Assignee: Mukul Gandhi
> Priority: Major
> Attachments: nullpointer-exception-input-sample1.xml,
> nullpointer-exception-sample1.xsl
>
>
> This is a bug report on the XSLT 3 development branch of Apache Xalan.
>
> When I run the following XSLT code
>
>
> {code:java}
> <?xml version="1.0" encoding="utf-8"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> version="3.0"
> xmlns:xs="http://www.w3.org/2001/XMLSchema";
> exclude-result-prefixes="xs">
>
> <xsl:template match="data">
> <xsl:copy>
> <xsl:value-of select="if (normalize-space()) then . else 'default'"/>
> </xsl:copy>
> </xsl:template>
> <xsl:output method="xml" indent="no"/>
> <xsl:template match="@* | node()">
> <xsl:copy>
> <xsl:apply-templates select="@* | node()"/>
> </xsl:copy>
> </xsl:template>
> <xsl:template match="/">
> <xsl:copy>
> <xsl:apply-templates/>
> <xsl:comment>Run with <xsl:value-of
> select="system-property('xsl:vendor')"/> at <xsl:value-of
> select="current-dateTime()"/></xsl:comment>
> </xsl:copy>
> </xsl:template>
> </xsl:stylesheet>
> {code}
>
> against the XML input
>
> {code:java}
> <root>
> <item>
> <data>foo</data>
> </item>
> <item>
> <data></data>
> </item>
> </root>{code}
>
> (from the command line with e.g.
> {noformat}
> & 'C:\Program Files\Eclipse Adoptium\jdk-8.0.422.5-hotspot\bin\java.exe' -cp
> 'build\xalan.jar;build\serializer.jar;lib\bcel-6.7.0.jar;lib\brazil-2.1.jar;lib\bsf.jar;lib\commons-logging-1.2.jar;lib\javaee-api-5.0-2.jar;lib\javaee-api-5.0-2.jar;lib\regexp.jar;lib\rhino-1.7.14.jar;lib\runtime.jar;lib\servlet-api-2.5.jar;lib\xpath31_types.jar;lib\endorsed\xercesImpl.jar;lib\endorsed\xml-apis.jar'
> org.apache.xalan.xslt.Process -in
> ..\..\OneDrive\Documents\xslt\blog-xslt-3-by-example\xalan-xslt3-tests\nullpointer-exception-input-sample1.xml
> -xsl
> ..\..\OneDrive\Documents\xslt\blog-xslt-3-by-example\xalan-xslt3-tests\nullpointer-exception-sample1.xsl
> {noformat}
>
> )
> I get an error (NullPointerException)
>
> {noformat}
> file:///C:/Users/marti/IdeaProjects/xalan-java/../../OneDrive/Documents/xslt/blog-xslt-3-by-example/xalan-xslt3-tests/nullpointer-exception-sample1.xsl;
> Zeilennummer22; Spaltennummer15; java.lang.NullPointerException{noformat}
>
> The code runs fine with Saxon HE 12 as shown above or even with Xalan with no
> change to that line 22 but a rewrite and avoidance of the `if` expression by
> using a match pattern e.g.
>
>
> {code:java}
> <?xml version="1.0" encoding="utf-8"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> version="3.0"
> xmlns:xs="http://www.w3.org/2001/XMLSchema";
> exclude-result-prefixes="xs">
>
> <xsl:template match="data[not(normalize-space())]">
> <xsl:copy>default</xsl:copy>
> </xsl:template>
> <xsl:output method="xml" indent="no"/>
> <xsl:template match="@* | node()">
> <xsl:copy>
> <xsl:apply-templates select="@* | node()"/>
> </xsl:copy>
> </xsl:template>
> <xsl:template match="/">
> <xsl:copy>
> <xsl:apply-templates/>
> <xsl:comment>Run with <xsl:value-of
> select="system-property('xsl:vendor')"/> at <xsl:value-of
> select="current-dateTime()"/></xsl:comment>
> </xsl:copy>
> </xsl:template>
> </xsl:stylesheet>
> {code}
>
>
>
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