Re: EXSLT

[Aleksi Kallio]

Morris Kwan wrote:
It is likely that you are using the old Xalan release packaged in JDK 1.4.
Please read this FAQ (http://xml.apache.org/xalan-j/faq.html#faq-N100CB) on
how to use Xalan with JDK 1.4.
Thanks! Unfortunaly the problem didn't disappear, even though the error 
message changed..

This is strange because the method org.apache.xalan.lib.ExsltMath.abs 
exists. Adding Xalan jars to classpath doesn't help.

Here is what happens:
[EMAIL PROTECTED] ~/xslt-test]$ cat XalanProblem.java
import org.w3c.dom.*;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.sax.*;
import javax.xml.transform.stream.*;
import javax.xml.transform.dom.*;
import org.xml.sax.*;
import java.io.*;
public class XalanProblem {
   public static void main(String a[]) {
       try {
           DocumentBuilderFactory dbf = 
DocumentBuilderFactory.newInstance();
           dbf.setNamespaceAware(true);
           Document xml = dbf.newDocumentBuilder().parse(new 
FileInputStream("xml.xml"));
           Document xslt = dbf.newDocumentBuilder().parse(new 
FileInputStream("xslt.xml"));

           TransformerFactory tFactory = TransformerFactory.newInstance();
           Transformer transformer = tFactory.newTransformer(new 
DOMSource(xslt));
           transformer.transform(new DOMSource(xml), new 
StreamResult(System.out));
       } catch (Exception e) {
           e.printStackTrace();
       }
   }
}

[EMAIL PROTECTED] ~/xslt-test]$ cat xslt.xml
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; 
xmlns:math="http://exslt.org/math"; version="1.0">

 <xsl:template match="/" >
   <xsl:value-of select="math:abs(2)" />
 </xsl:template>
</xsl:stylesheet>
[EMAIL PROTECTED] ~/xslt-test]$ java 
-Xbootclasspath/p:/home/medar/tomcat/common/lib/xalan.jar:/home/medar/tomcat/common/lib/xml-apis.jar:/home/medar/tomcat/common/lib/xercesImpl.jar 
-Djavax.xml.transform.TransformerFactory=org.apache.xalan.processor.TransformerFactoryImpl 
XalanProblem                                                                             
javax.xml.transform.TransformerException: 
java.lang.NoSuchMethodException: For extension function, could not find 
method org.apache.xalan.lib.ExsltMath.abs([ExpressionContext,] #NUMBER).
Checked both static and instance methods.
       at 
org.apache.xalan.extensions.ExtensionHandlerJavaClass.callFunction(ExtensionHandlerJavaClass.java:357)
       at 
org.apache.xalan.extensions.ExtensionsTable.extFunction(ExtensionsTable.java:227)
       at 
org.apache.xalan.transformer.TransformerImpl.extFunction(TransformerImpl.java:460)
       at 
org.apache.xpath.functions.FuncExtFunction.execute(FuncExtFunction.java:196)
       at 
org.apache.xpath.Expression.executeCharsToContentHandler(Expression.java:357)
       at 
org.apache.xalan.templates.ElemValueOf.execute(ElemValueOf.java:319)
       at 
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2324)
       at 
org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:2147)
       at 
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1203)
       at 
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:665)
       at 
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1119)
       at 
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1097)
       at XalanProblem.main(XalanProblem.java:22)
Caused by: java.lang.NoSuchMethodException: For extension function, 
could not find method 
org.apache.xalan.lib.ExsltMath.abs([ExpressionContext,] #NUMBER).
Checked both static and instance methods.
       at 
org.apache.xalan.extensions.MethodResolver.getMethod(MethodResolver.java:316)
       at 
org.apache.xalan.extensions.ExtensionHandlerJavaClass.callFunction(ExtensionHandlerJavaClass.java:320)
       ... 12 more
---------
java.lang.NoSuchMethodException: For extension function, could not find 
method org.apache.xalan.lib.ExsltMath.abs([ExpressionContext,] #NUMBER).
Checked both static and instance methods.
       at 
org.apache.xalan.extensions.MethodResolver.getMethod(MethodResolver.java:316)
       at 
org.apache.xalan.extensions.ExtensionHandlerJavaClass.callFunction(ExtensionHandlerJavaClass.java:320)
       at 
org.apache.xalan.extensions.ExtensionsTable.extFunction(ExtensionsTable.java:227)
       at 
org.apache.xalan.transformer.TransformerImpl.extFunction(TransformerImpl.java:460)
       at 
org.apache.xpath.functions.FuncExtFunction.execute(FuncExtFunction.java:196)
       at 
org.apache.xpath.Expression.executeCharsToContentHandler(Expression.java:357)
       at 
org.apache.xalan.templates.ElemValueOf.execute(ElemValueOf.java:319)
       at 
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2324)
       at 
org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:2147)
       at 
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1203)
       at 
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:665)
       at 
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1119)
       at 
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1097)
       at XalanProblem.main(XalanProblem.java:22)
[EMAIL PROTECTED] ~/xslt-test]$