XML RPC problem

Hi, in my program i am using XML RPC..

On this line:

Object result = sxrpc.execute("weblab.getFromSklad", params);

i get following error. i tried everything, file xmlrpc-2.0-applet.jar is in lib/ext JRE directory also in classpath. what can i do? many thanks

the error:

Exception in thread "Thread-6" java.lang.NoClassDefFoundError: org/apache/commons/codec/EncoderException

at org.apache.xmlrpc.applet.SimpleXmlRpcClient.execute(SimpleXmlRpcClient.java:92)

at RpcCommunication.getSkladData(RpcCommunication.java:60)

at GetData.run(GetData.java:19)

[607 byte] By [fantica] at [2007-11-26 20:49:23]