Executing WSDL using Java OATS

public class script extends IteratingVUserScript{
@ScriptService oracle.oats.scripting.modules.utilities.api.UtilitiesService utilities;
@ScriptService oracle.oats.scripting.modules.http.api.HTTPService http;
@ScriptService oracle.oats.scripting.modules.webService.api.WSService ws;


@Override
public void run() throws Exception {
ws.post(5, WSDLlink,
xmlPayload,
http.headers(
http.header("Content-Type",
"text/xml;charset=UTF-8",
Header.HeaderAction.Modify),
http.header(
"SOAPAction",
"\"headeurl"",
Header.HeaderAction.Modify)), true, null,
null);


}