problem about common configuration

[zhenyu Lu]

I am trying to use the common configuration 1.0rc with jdk 1.4.2.  I download the 
common-configuration1.0rc.jar from the website and include it in my classpath. My 
program like this: 
 
public class ServerApp {
  /** Creates a new instance of MainApp */
  public ServerApp() {
  }
  /**
   * @param args the command line arguments
   */
  public static void main(String[] args) {
    try {
      //Config c = new Config("Config.xml");
      ConfigurationFactory factory = new ConfigurationFactory();
      URL configURL = new File("Config.xml").toURL();
      factory.setConfigurationFileName(configURL.toString());
      Configuration config = factory.getConfiguration();
      String host = config.getString("HOST");
       }
    catch (Exception e) {
      e.printStackTrace();
    }
  }
}
 
When I compile it using jbuilderxp, the compiler pop up following message:
"ServerApp.java": cannot access 
org.apache.commons.lang.exception.NestableException,org.apache.commons.lang.exception.NestableException
 
 
The error line is: Configuration config = factory.getConfiguration();

I checked the jar file. There is no exception class included in it. 
 
Any idea? Thanks. 
 
ziggy


                
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