Re: Getting NullPointerException when upgrading from 2.5.1 to 2.7.0 during setParameter call

We are upgrading from 2.5.1 to 2.7.0 and am seeing NPE being thrown when 2.5.1 used to throw a TransformerException.

 

The use case is

 

we are using entity parameter in the XSLT .  In 2.5.1, if a parameter is NOT defined but referenced, a TransformerException is thrown.  But in 2.7.0, we are getting a NPE instead .  Any idea if this is a confirmed

change of behavior in 2.7.0 ?

 

sample XSL snippet

 

<!DOCTYPE xsl:stylesheet [
      <!ENTITY MY_ROOT_VALUE      '5'>
]>
 

         SAXTransformerFactory tf = (SAXTransformerFactory)SAXTransformerFactory.newInstance();

        Templates  tmp = getTemplates();
        if (tmp == null)
        {
            String msg  = "XSL transformer source is null.";
            ParserConfigurationException pce = new ParserConfigurationException(msg);
            if (m_log != null) m_log.error(msg, pce);
            throw pce;
        }

        TransformerHandler th = tf.newTransformerHandler(tmp);
        Transformer t = th.getTransformer();

       //Add any optional parameters
        if (m_parameters != null)
        {
            Iterator i = m_parameters.keySet().iterator();
            while (i.hasNext())
            {
                String name = (String)i.next();
                Object value = m_parameters.get(name);
                t.setParameter(name, value);   --->>> NPE Thrown here.
            }
        }

   org.apache.xalan.transformer.TransformerImpl.setParameter(TransformerImpl.java:1558)
at org.apache.xalan.transformer.TransformerImpl.setParameter(TransformerImpl.java:1606)
at com.amx.translationstep.translate (translationstep.java :226)
at ...