Java Extensions cause crash in XSLTC while working fine in Xalan
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Key: XALANJ-2062
URL: http://issues.apache.org/jira/browse/XALANJ-2062
Project: XalanJ2
Type: Bug
Components: XSLTC
Versions: 2.6
Environment: Win32, Linux
Reporter: Holger Rehn
I use XSLTC in my own application running under JBoss (Win32/Linux) and Orion
(Linux). When using the Java Extensions I get the following error:
FEHLER: 'null'
SCHWER WIEGENDER FEHLER: 'Die Formatvorlage konnte nicht kompiliert werden.'
java.lang.NullPointerException
at org.apache.xalan.xsltc.compiler.StringCall.translate(StringCall.java:68)
at
org.apache.xalan.xsltc.compiler.StringLengthCall.translate(StringLengthCall.java:44)
at org.apache.xalan.xsltc.compiler.CastExpr.translate(CastExpr.java:231)
at
org.apache.xalan.xsltc.compiler.EqualityExpr.translateDesynthesized(EqualityExpr.java:199)
at org.apache.xalan.xsltc.compiler.If.translate(If.java:99)
at
org.apache.xalan.xsltc.compiler.SyntaxTreeNode.translateContents(SyntaxTreeNode.java:490)
at org.apache.xalan.xsltc.compiler.ForEach.translate(ForEach.java:148)
at
org.apache.xalan.xsltc.compiler.SyntaxTreeNode.translateContents(SyntaxTreeNode.java:490)
at
org.apache.xalan.xsltc.compiler.LiteralElement.translate(LiteralElement.java:412)
at
org.apache.xalan.xsltc.compiler.SyntaxTreeNode.translateContents(SyntaxTreeNode.java:490)
at
org.apache.xalan.xsltc.compiler.LiteralElement.translate(LiteralElement.java:412)
at
org.apache.xalan.xsltc.compiler.SyntaxTreeNode.translateContents(SyntaxTreeNode.java:490)
at
org.apache.xalan.xsltc.compiler.LiteralElement.translate(LiteralElement.java:412)
at
org.apache.xalan.xsltc.compiler.SyntaxTreeNode.translateContents(SyntaxTreeNode.java:490)
at org.apache.xalan.xsltc.compiler.Template.translate(Template.java:335)
at
org.apache.xalan.xsltc.compiler.TopLevelElement.compile(TopLevelElement.java:56)
at org.apache.xalan.xsltc.compiler.Mode.compileNamedTemplate(Mode.java:572)
at org.apache.xalan.xsltc.compiler.Mode.compileTemplates(Mode.java:589)
at org.apache.xalan.xsltc.compiler.Mode.compileApplyTemplates(Mode.java:841)
at
org.apache.xalan.xsltc.compiler.Stylesheet.compileModes(Stylesheet.java:580)
at org.apache.xalan.xsltc.compiler.Stylesheet.translate(Stylesheet.java:695)
at org.apache.xalan.xsltc.compiler.XSLTC.compile(XSLTC.java:335)
at org.apache.xalan.xsltc.compiler.XSLTC.compile(XSLTC.java:410)
at
org.apache.xalan.xsltc.trax.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:720)
-> the style sheet I'm using stripped down to a minimum <-
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:java="http://xml.apache.org/xslt/java"; version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:param name="connection" />
<xsl:param name="knrTable"
select="java:com.sqlgmbh.tcsap.xsl.LookupTable.new( $connection,
'LA.VERTRAEGE3', 'LA.VERTRAEGE3.PKN' )"/>
<xsl:template match="/">
<xsl:if test="string-length(string(java:get($knrTable, '0')))!=0 "/>
</xsl:template>
</xsl:stylesheet>
<-------------------------------------------------------->
If I switch back to Xalan everything works fine.
The error above seems a bit missleading since if I remove the content of my
template the error changes to:
FEHLER: 'METHOD_NOT_FOUND_ERRcom.sqlgmbh.tcsap.xsl.LookupTable:new'
I really can't see a possibility how this could be possible. The error remains
even if I include the "missing" class directly in the xalan.jar file.
Just a few more details:
At startup the application loads a number of style sheets compiles them into
Templates objects and stores them. Every once in a while the application has to
transform XML data. To do so it loads an appropriate Templates object,
generates a Transformer object, sets the "connection" param (data base
connection) and executes the Transformer. This application has worked for years
now so I guess it's not the problem.
If you need further information please don't hesitate to ask!
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