This WF-DCN sample illustrates WF-DCN without payload.
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.net.Authenticator; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.PasswordAuthentication; import java.net.ProtocolException; import java.net.URL; import java.net.URLEncoder; public class HttpAuth { /** * @param args * @throws MalformedURLException */ public static void main(String[] args) throws Exception { URL url = null; String wfdcn_request = "{\"id\":\"dcntest_69\",\"op\":\":upsert\"," + "\"subject\":\"dept_id = 1300\",\"to\":\"perf0111\"," + "\"from\":\"SAP Leave WorkFlow\",\"read\":false,\"priority\":true," + "\"body\":\",TaskID:, WIID:000001468382, USER:perf0111#END#\"}"; url = new URL("HTTP", "10.42.39.149", 8000, "/dcn/HttpAuthDCNServlet?cmd=wf&security=admin&domain=default"); HttpURLConnection con = null; con = (HttpURLConnection) url.openConnection(); con.setDoOutput(true); con.setRequestMethod("POST"); final String login = "supAdmin"; final String pwd = "AdminPassword"; Authenticator.setDefault(new Authenticator() { protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(login, pwd.toCharArray()); } }); StringBuffer sb = new StringBuffer(); sb.append(wfdcn_request); OutputStream os = con.getOutputStream(); os.write(sb.toString().getBytes()); os.flush(); os.close(); StringBuffer xmlResponse = new StringBuffer(); int returnCode = con.getResponseCode(); if (returnCode != 200) { String rspErrorMsg = "Error getting response from the server (error code " + returnCode + ")" + con.getResponseMessage(); System.out.println(rspErrorMsg); } else { BufferedReader in = new BufferedReader(new InputStreamReader(con .getInputStream(), "UTF-8")); String line; while ((line = in.readLine()) != null) { xmlResponse.append(line).append("\n"); } System.out.println("xmlResponse: " + xmlResponse); } } }