Regression(Bug4512806) : transformer.setOutputProperties(null)
does not work properly

According to javadoc - If argument to this function is null,
any properties previously set are removed, and the value
 will revert to the value defined in the templates object.
 
 
To reproduce the problem : use the program below
---------------------------------------------------
java -version
javac Bug4512806.java
java Bug4512806


import javax.xml.transform.stream.StreamSource;
import java.io.StringReader;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.OutputKeys;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMResult;


import org.w3c.dom.Document;
import org.xml.sax.SAXException;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;


public class Bug4512806 { // extends Util{

    private static Transformer transformer;

    public Bug4512806() {

   }
   
    public static void main(String args[]){
    Bug4512806 bug = new Bug4512806();
    bug.run();
    }
    
   /**
    * This will check bug xxxxxxx
    *
    *
    */
    public void run() {
        try {

           boolean status = testProperty();
           System.out.println("status"+status);
     
        } catch (Exception ex) {
            System.err.println(ex);
        }
    }


    
    private String printPropertyValue(String name) {
        return name+"="+transformer.getOutputProperty(name);
    }

    public boolean testProperty () {
        boolean testStat = false;
        try {
            
            
            
            String xslData = "<?xml version='1.0'?>"
                           + "<xsl:stylesheet"
                           + " version='1.0'"
                           + " xmlns:xsl='http://www.w3.org/1999/XSL/Transform&#39;"
                           + ">\n"
                           + " <xsl:output method='xml' indent='yes'"
                           + " encoding='UTF-8'/>\n"
                           + " <xsl:template match='/'>\n"
                           + " Hello World! \n"
                           + " </xsl:template>\n"
                           + "</xsl:stylesheet>";
                     
            /* Create a transform factory instance */
            TransformerFactory tfactory = TransformerFactory.newInstance();

            /* Create a StreamSource instance */
            StreamSource streamSource = new StreamSource(new StringReader(xslData));

            transformer = tfactory.newTransformer(streamSource);
            
            System.out.println("In stylesheet: ");
            System.err.println("before "+ printPropertyValue(OutputKeys.INDENT));
            System.err.println("before "+ printPropertyValue(OutputKeys.ENCODING));
            
            transformer.setOutputProperty(OutputKeys.INDENT, "no");
            transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-16");

            System.err.println("\nBefore method call: ");
            System.err.println(printPropertyValue(OutputKeys.INDENT));
            System.err.println(printPropertyValue(OutputKeys.ENCODING));
            if((printPropertyValue(OutputKeys.INDENT).equals("no")) && (printPropertyValue(OutputKeys.ENCODING).equals("UTF16"))) {
               
                testStat =true;
            }else{
                System.err.println("Values not set");
                testStat = false;
                return testStat ;
                        
            }
    
            transformer.setOutputProperties(null);
            
            System.out.println("After method call: ");
            System.err.println(printPropertyValue(OutputKeys.INDENT));
            System.err.println(printPropertyValue(OutputKeys.ENCODING));

            if((printPropertyValue(OutputKeys.INDENT).equals("yes")) && ( printPropertyValue(OutputKeys.ENCODING).equals("UTF8"))){
                testStat = true;
            }else{
                System.err.println("Value not UNSET");
                testStat = false;
                return testStat;
            }
                
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }
}

 

- Sample program attached