Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/httpclient/URIException at org.apache.xmlrpc.client.XmlRpcCommonsTransportFactory.getTransport(XmlRpcCommonsTransportFactory.java:35) at org.apache.xmlrpc.client.XmlRpcClientWorker.execute(XmlRpcClientWorker.java:53) at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:166) at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:136) at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:125) at edu.msoe.phillijw.lab05.client.Client.main(Client.java:37) Object[] params = new Object[] { "waka.com" }; String result = (String)client.execute("DnsLookup.dnsLookup", params); //line 37 System.out.println("> " + result);