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How to invoke a list of parameters and a string parameter

URL wsdlLocation;

                    String messaggio="";

                    try {

                              wsdlLocation = new URL("http://localhost:8080...................................?wsdl");

                              String ns = "http://impl.businesslogic/";

                              QName serviceName = new QName(ns, "ServiceBL");

                              QName port = new QName(ns, ServiceBLPort");

                              QName operation = new QName(ns, "executeService");

                              ServiceFactory factory = ServiceFactory.newInstance();

                              Service service = factory.createService(wsdlLocation, serviceName);

                              Call call = service.createCall(port, operation);

Object rispostaWS = call.invoke(new Object[]{new List<String>command, new String(ID)});

                              messaggio = (String)rispostaWS;

this is my method but throws error.