error:package com.sun.xml.internal.ws.util.xml does not exist

[amir kawaja]

hi
i currently used netbeans . i working with xml file with sax .
my code is :

        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbf.newDocumentBuilder();
        Document doc = db.parse("c:/as.xml");
        doc.getDocumentElement().normalize();
        Element staff =doc.createElement("staff") ; 
        Element name =doc.createElement("name") ; 
        name.setTextContent(new CDATA("<div> this is a test </div>").getText()) ; 
        staff.appendChild(name) ; 
        doc.getDocumentElement().appendChild(staff) ;     
        OutputFormat format = new OutputFormat( doc);
        format.setIndenting(true);
        XMLSerializer serializer = new XMLSerializer(
                new FileOutputStream(new File("c:/as.xml")), format);
        serializer.serialize(doc);

my program run correctly but when clean and build this project get this error :

1-C:\p1\src\javaapplication1\XMLHandler.java:13: package com.sun.xml.internal.ws.util.xml does not exist
import com.sun.xml.internal.ws.util.xml.CDATA;

and get this warnings :
1- C:\p1\src\javaapplication1\XMLHandler.java:11: warning: com.sun.org.apache.xml.internal.serialize.OutputFormat is Sun proprietary API and may be removed in a future release
import com.sun.org.apache.xml.internal.serialize.OutputFormat;

2-C:\p1\src\javaapplication1\XMLHandler.java:12: warning: com.sun.org.apache.xml.internal.serialize.XMLSerializer is Sun proprietary API and may be removed in a future release
import com.sun.org.apache.xml.internal.serialize.XMLSerializer;

please help me .

[Jesper de Jong]

Welcome to the Ranch. Please be forthright when cross-posting to other sites.

You're using classes from com.sun.* packages. You're not supposed to use those classes directly - they are not part of the public API of the Java platform and do not exist on all versions of Java. Re-write your program so that you don't use classes from the com.sun.* packages. Use the classes and interfaces in javax.xml.* instead, for example.