[Bug 914] New - Parameters set with setParameter are accessible even without xsl:param

[bu...@apache.org]

http://nagoya.apache.org/bugzilla/show_bug.cgi?id=914

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+ +============================================================================+
+ | Parameters set with setParameter are accessible even without xsl:param     |
+ +----------------------------------------------------------------------------+
+ |        Bug #: 914                         Product: XalanJ2                 |
+ |       Status: NEW                         Version: 2.0.0                   |
+ |   Resolution:                            Platform: All                     |
+ |     Severity: Normal                   OS/Version: Other                   |
+ |     Priority: Medium                    Component: org.apache.xalan.transf |
+ +----------------------------------------------------------------------------+
+ |  Assigned To: garyp@firstech.com                                           |
+ |  Reported By: garyp@firstech.com                                           |
+ +----------------------------------------------------------------------------+
+ |          URL:                                                              |
+ +============================================================================+
+ |                              DESCRIPTION                                   |
+ Reported by Alex Roytman <ro...@peacetech.com>
+ 
+ I noticed that if we do myTransformer.setParameter(name, value) this parameter 
+ is accessible by both <xsl:value-of> and XPathContext.getVariable() 
+ even though it was not declared in the stylesheet - no errors/warnings raised
+ 
+ Sample java program:
+ import javax.xml.transform.TransformerFactory;
+ import javax.xml.transform.Transformer;
+ import org.apache.xalan.transformer.TransformerImpl;
+ import javax.xml.transform.stream.StreamSource;
+ import javax.xml.transform.stream.StreamResult;
+ import java.io.FileOutputStream;
+ import javax.xml.transform.TransformerConfigurationException;
+ import javax.xml.transform.TransformerException;
+ import org.apache.xml.utils.QName;
+ import java.io.IOException;
+ 
+ public class XalanTest1 {
+ 
+   public static void main(String[] argv) 
+     throws TransformerConfigurationException, TransformerException, IOException
+   {
+ 
+ 	TransformerFactory tFactory = TransformerFactory.newInstance();
+ 
+ 	Transformer transformer = tFactory.newTransformer(new StreamSource
+ ("foo.xsl"));
+ 
+   transformer.setParameter("myParam", "myParamValue");
+ 
+ 	transformer.transform(new StreamSource("foo.xml"), new StreamResult
+ (System.err));
+ 
+   QName varName = new QName("myParam");
+ 
+   System.err.println("getVariable = " + ((TransformerImpl) 
+ transformer).getXPathContext().getVariable(varName));
+ 
+   }
+ } 
+ 
+ XSL:
+ <?xml version="1.0"?> 
+ <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
+ 
+ 
+ <xsl:template match="doc">
+     <out>myParam = <xsl:value-of select="$myParam"/></out>
+ </xsl:template>
+ 
+ </xsl:stylesheet>
+ 
+ XML:
+ <?xml version="1.0"?>
+ <doc>Hello</doc>