[Simple-support] Java.lang.NoClassDefFoundError exception

[Wessam A. R. <wes...@gm...>]

Hi,
I just started using this library in a module am developing for Netbeans
IDE. I was just trying out the tutorial example but it keeps giving me a
Java.lang.NoClassDefFoundError exception. in the details of this error this
is written beside the exception name  "javax/xml/stream/XMLInputFactory".
This is the code i wrote:
 *try {

        org.simpleframework.xml.Serializer serializer = new Persister();
        Example example = new Example("Example message", 123);
        File result = new File("H:\\example.xml");
        serializer.write(example, result);

    }   catch (Exception ex) {
        Exceptions.printStackTrace(ex);
    }*

and this is the class i have:


*@Root
public class Example {*

*   @Element
   private String text;*

*   @Attribute
   private int index;*

*   public Example() {
      super();
   }  *

*   public Example(String text, int index) {
      this.text = text;
      this.index = index;
   }*

*   public String getMessage() {
      return text;
   }*

*   public int getId() {
      return index;
   }
}*
Please i need help with this.

Thanks in advance

Wessam