Sending SOAP request with JDK library

private static synchronized String sendSOAPRequest(String soapMsg, String webserviceMethod, String soap_Endpoint) throws Exception { try { URL url = new URL(soap_Endpoint); // setup HTTP Connecten to the service HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("POST"); connection.setDoOutput(true); connection.setDoInput(true); // create SOAP Request connection.setUseCaches(false); connection.setRequestProperty("Content-type", "text/xml; charset=iso-8859-1"); connection.setRequestProperty("SOAPAction", webserviceMethod); System.out.println("SOAP-Endpoint: " + url); System.out.println("SOAP-Action: " + webserviceMethod); // send SOAP-Request byte[] bytes = soapMsg.getBytes(); connection.setRequestProperty("Content-length", String.valueOf(bytes.length)); OutputStream out = connection.getOutputStream(); out.write(bytes); out.close(); // read SOAP-response BufferedReader in; try { in = new BufferedReader(new InputStreamReader(connection.getInputStream())); } catch (IOException e) { if (connection.getResponseCode() == 500) in = new BufferedReader(new InputStreamReader(connection.getErrorStream())); else throw e; } // handle the SOAP response StringBuffer in_buffer = new StringBuffer(8192); String temp = ""; while ((temp = in.readLine()) != null) { in_buffer.append(temp); } in.close(); return in_buffer.toString(); } catch (Exception e) { System.out.println("!!! Exception: " + e); throw e; } // return ""; }