Name: eaR10174 Date: 08/26/2003


  The following methods of XMLReader implementation incorrectly throw NullPointerException
(see test.java below) in case when a parameter is null
  
     public void setContentHandler(ContentHandler handler)
     public void setDTDHandler(DTDHandler handler)
     public void setEntityResolver(EntityResolver resolver)
     public void setErrorHandler(ErrorHandler handler)
     
In jdk1.5.0-beta-b16 the version of javadoc of the methods has been changed from SAX 2.0
to SAX 2.0.1 . The javadoc reads that the methods do not throw NullPointerException. So
according to the document "Requirements for Writing Java API Specifications"
(http://java.sun.com/j2se/javadoc/writingapispecs/index.html) in such a case the parameter
null is valid value.

  The bug appears in jdk1.5.0beta-b16 and affects JCK1.5 tests that have been adapted for
the new javadoc:
  
   api/org_xml/sax/XMLReader/index.html#Handler[Handler103]
   api/org_xml/sax/XMLReader/index.html#Handler[Handler305]
   api/org_xml/sax/XMLReader/index.html#Handler[Handler507]
   api/org_xml/sax/XMLReader/index.html#Handler[Handler709]
   
------------------------------------test.java-----------------------------
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;

public class test {

    public static void main(String argv[]) {
        new test().run();
    }
    
    public void run() {
        XMLReader parser = null;
        try {
            parser = SAXParserFactory.newInstance().newSAXParser().getXMLReader();
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(1);
        }
        
        DefaultHandler handler = null;
        
        try {
            parser.setContentHandler(handler);
        } catch (NullPointerException e) {
            System.out.println("");
            e.printStackTrace();
        }

        try {
            parser.setDTDHandler(handler);
        } catch (NullPointerException e) {
            System.out.println("");
            e.printStackTrace();
        }

        try {
            parser.setEntityResolver(handler);
        } catch (NullPointerException e) {
            System.out.println("");
            e.printStackTrace();
        }

        try {
            parser.setErrorHandler(handler);
        } catch (NullPointerException e) {
            System.out.println("");
            e.printStackTrace();
        }
    }
}
--------------------------------------------------------------------------
% java -showversion test
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b16)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b16, mixed mode)


java.lang.NullPointerException
        at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.setContentHandler(AbstractSAX
Parser.java:1422)
        at test.run(test.java:23)
        at test.main(test.java:8)

java.lang.NullPointerException
        at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.setDTDHandler(AbstractSAXPars
er.java:1370)
        at test.run(test.java:30)
        at test.main(test.java:8)

java.lang.NullPointerException
        at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.setEntityResolver(AbstractSAX
Parser.java:1232)
        at test.run(test.java:37)
        at test.main(test.java:8)

java.lang.NullPointerException
        at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.setErrorHandler(AbstractSAXPa
rser.java:1291)
        at test.run(test.java:44)
        at test.main(test.java:8)
--------------------------------------------------------------------------


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