DO NOT REPLY [Bug 14325] New: - Transformer fails when Templates constructed with "new StreamSource(new FileReader())"

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=14325

Transformer fails when Templates constructed with "new StreamSource(new FileReader(<filepath>))"

           Summary: Transformer fails when Templates constructed with "new
                    StreamSource(new FileReader(<filepath>))"
           Product: XalanJ2
           Version: 2.4
          Platform: PC
        OS/Version: Windows NT/2K
            Status: NEW
          Severity: Major
          Priority: Other
         Component: org.apache.xalan.transformer
        AssignedTo: xalan-dev@xml.apache.org
        ReportedBy: sujansky@pacbell.net


Note the difference in the way that the Templates instance is created in the 
following code snippet ("xslFile" is a String containing a file path):

    TransformerFactory tf = TransformerFactory.newInstance();

    //THIS ONE WORKS
    Templates t = tf.newTemplates(new StreamSource(xslFile));

    //THIS ONE THROWS AN ERROR:  "Unknown error in XPath"
    //Templates t = tf.newTemplates(new StreamSource(new FileReader(xslFile)));

    Transformer transformer = t.newTransformer();

    //Starts a server object whose methods are called from the xsl stylesheet
    LocalTermServer tm = initLocalTermServer();
    transformer.setParameter("te",tm);

    transformer.transform(new StreamSource(inputFile), new 
StreamResult(outputFile));

When the bad version is used, the Unknown XPath error is thrown at the time 
transform() is called (all preceding statements succeed without apparent 
error, and this code compiles without error).
This problem occurs only when a stylesheet is used that contains extension 
functions and the "document()" function (simpler stylesheets work without 
problem).  Is this a known bug?  Note that similar problems occur when an 
InputStream instance is used to construct the StreamSource also (i.e. ->

    //Templates t = tf.newTemplates(new StreamSource(anInputStream));

Obviously, TransformerFactory.getTemplates() should work the same regardless of 
how the StreamSource that is its argument was created.  That doesn't seem to be 
the case, at least with certain kinds of stylesheets.