Error in XML-RPC on localhost.

Hi, I implemented XML-RPC client and server on localhost.The server is running ok.but when I run client following errors occurred:

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/codec/DecoderException at org.apache.xmlrpc.XmlRpc.createTypeFactory(XmlRpc.java:235) at org.apache.xmlrpc.XmlRpc.(XmlRpc.java:190) at org.apache.xmlrpc.XmlRpcClientResponseProcessor.(XmlRpcClientResponseProcessor.java:49) at org.apache.xmlrpc.XmlRpcClientWorker.(XmlRpcClientWorker.java:44) at org.apache.xmlrpc.XmlRpcClient.getWorker(XmlRpcClient.java:351) at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:191) at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:185) at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:178) at rpcpkg.RPCClientDemo.main(RPCClientDemo.java:16)

I have kept server JAVA file on C:\wamp\www\workspace3\JAVARPC\RPCSRC\rpcpkg\RPCServerDemo.java

Below is my code for client : package rpcpkg;

import java.util.*; import org.apache.xmlrpc.XmlRpcClient; public class RPCClientDemo {

 public static void main (String [] args) {
  try {

     XmlRpcClient server = new XmlRpcClient("http://localhost/workspace3/JAVARPC/RPCSRC/rpcpkg");
     Vector params = new Vector();
     params.addElement(new Integer(17));
     params.addElement(new Integer(13));

     Object result = server.execute("sample.sum", params);

     int sum = ((Integer) result).intValue();
     System.out.println("The sum is: "+ sum);

   } catch (Exception exception) {
     System.err.println("JavaClient: " + exception);
   }
  }
}

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Error in XML-RPC on localhost.

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