[ http://issues.apache.org/jira/browse/XALANJ-1942?page=all ]
Brian Minchau updated XALANJ-1942:
----------------------------------
Fix Version: 2.7
(was: 2.6)
> NPE on sorting using a variable
> -------------------------------
>
> Key: XALANJ-1942
> URL: http://issues.apache.org/jira/browse/XALANJ-1942
> Project: XalanJ2
> Type: Bug
> Components: Xalan
> Versions: 2.6
> Reporter: Paolo Noya
> Priority: Blocker
> Fix For: 2.7
> Attachments: Patch.txt, patch.1942.txt
>
> Similar to issue n. 1577
> I've a problem during sort node with xalan-j version 2.6.0 and also with
> 2.4.1(bundle with jdk 1.4.2_05).
> I have an XML like this:
> <?xml version="1.0"?>
> <Peoples>
> <Person>
> <Name>Johnson</Name>
> <Level>foo</Level>
> </Person>
> <Person>
> <Name>Smith</Name>
> <Level>baz</Level>
> </Person>
> <Person>
> <Name>White</Name>
> <Level>foo</Level>
> </Person>
> <Person>
> <Name>Brown</Name>
> </Person>
> <Person>
> <Name>Black</Name>
> <Level>bar</Level>
> </Person>
> </Peoples>
> =======================
> and I want sort by level and then by name giving a rule for
> mapping level with an arbitrary number.
> I wrote an xml like this:
> =======================
> <?xml version="1.0"?>
> <xsl:stylesheet
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; version="1.0"
> xmlns:this="http://localhost/"; exclude-result-prefixes="this"
> >
>
> <this:Levels>
> <Level pos="0"/><!--dummy level-->
> <Level pos="1">foo</Level>
> <Level pos="2">bar</Level>
> <Level pos="3">baz</Level>
> </this:Levels>
>
> <xsl:variable name="levels"
> select="document('')/xsl:stylesheet/this:Levels"/>
>
> <xsl:template match="/Peoples">
> <xsl:apply-templates select="Person">
> <xsl:sort data-type="number"
> select="number($levels/Level[.=current()/Level]/@pos)"/>
> <xsl:sort select="Name"/>
> </xsl:apply-templates>
> </xsl:template>
>
> <xsl:template match="Person">
> <xsl:value-of select="Name"/>
> </xsl:template>
>
> </xsl:stylesheet>
> =======================
>
> during transfom, the element <xsl:sort data-type="number"
> select="number($levels/Level[.=current()/Level]/@pos)"/>
> produce an excepiton
> javax.xml.transform.TransformerException:
> java.lang.NullPointerException
> If i print the <xsl:value-of
> select="number($levels/Level[.=current()/Level]/@pos)"/> in
> "Person" template I got the correct value.
> Other parsers give me the correct result.
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