HttpsURLConnection class cast exception problem

Question

Hy everyone,
I have next java code to send xml file over https.
//          Create a trust manager that does not validate certificate chains
          TrustManager[] trustAllCerts = new TrustManager[] {
                    new X509TrustManager() {
                         public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                              return null;
                         public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType) {
                         public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType) {
//          Install the all-trusting trust manager
          try {
          SSLContext sc = SSLContext.getInstance("SSL");
          sc.init(null, trustAllCerts, new java.security.SecureRandom());
          javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
          } catch (Exception e) {
          e.printStackTrace();
          //Make the output file for xml response
          DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd_kk-mm-ss");
               _xmlResponseIme = dateFormat.format(new Date());
               try {
                    if (createOutXML(_xmlResponseIme)){
                         this.set_xmlResponseIme(_xmlResponseIme);
               } catch (IOException e2) {
                    //System.out.println("SSLClient :: createOutXML catch");
                    e2.printStackTrace();
          //translate request.xml file to String
          File xmlRequest = new File(_path + "/XMLFiles/request.xml");
          String xmlFile="";
               try {
                    xmlFile = this.getStringFromXMLFile(xmlRequest);
               } catch (FileNotFoundException e) {
                    e.printStackTrace();
               } catch (Exception e) {
                    e.printStackTrace();
               this.registerMyHostnameVerifier();
               try {
               path = "https://"+host+_config.getString("path");
                    url = new URL(path);
               } catch (MalformedURLException e1) {
                         e1.printStackTrace();
               try {
                         conn = (javax.net.ssl.HttpsURLConnection) url.openConnection();
                         conn.setRequestMethod("POST");
                         conn.setRequestProperty("Content-type", "application/x-www-form-urlencoded;charset=Cp1250");
                         conn.setDoInput(true);
                         conn.setDoOutput(true);
                         //conn.setDefaultUseCaches(false);
                         conn.setRequestProperty("xml", xmlFile);
                         conn.setAllowUserInteraction(true);
                         System.out.println("Response kod = " + conn.getResponseCode());
               } catch (IOException e2) {
                         e2.printStackTrace();
               try {
          //receive answer
          InputStream in = conn.getInputStream();
          FileOutputStream fout;
          fout = new FileOutputStream(_xmlOut);
          StringBuffer sb = new StringBuffer();
          Reader reader = new InputStreamReader(in, "Cp1250");
          int c;
          while ((c = in.read()) != -1){
               sb.append((char) c);
               fout.write((byte) c);
          String document = sb.toString();
          System.out.println(document);
          fout.close();
          in.close();
               } catch (IOException e3) {
                    e3.printStackTrace();
Problem is that on one WebSphere Application Server 6 is everithing OK, but on another I receive error :
On both server I have same jdk.
Error 500: com.ibm.net.ssl.internal.www.protocol.https.HttpsURLConnection
in line
conn = (javax.net.ssl.HttpsURLConnection) url.openConnection();
Where is the problem ??

Answer 1

Sorry, should have been:
javax.net.ssl.trustStore=path/to/etc/etc/DummyServerTrustFile.jks
javax.net.ssl.trustStorePassword=WebAS
Didn't get it to actually work like that though. trustStore & trustStorePassword were always null when I ran my program under WAS5.1.
Here is what I did. If running from command line using WAS5.1 as JRE, first setup the environment:
set JAVA_HOME=C:\Program Files\IBM\SDP70\runtimes\base_v51\java\jre
java -Djava.protocol.handler.pkgs=com.ibm.net.ssl.internal.www.protocol myProgramIndependent of whether running from command line or in RAD7, code in program:
System.setProperty("javax.net.ssl.trustStore",
"C:\\Program Files\\IBM\\SDP70\\runtimes\\base_v51\\etc\\DummyServerTrustFile.jks");
System.setProperty("javax.net.ssl.trustStorePassword","WebAS");(would be better to be able to specify trustStorePassword in WAS than in code though,
but works as such)
One can use some other file but I just added the certificate to DummyServerTrustFile.jks.
Then, unlike I said, one CAN use the HttpsURLConnection, like this:
com.ibm.net.ssl.internal.www.protocol.https.HttpsURLConnection conn = null;
URL urli = new URL("https://some.address.com");
conn = (com.ibm.net.ssl.internal.www.protocol.https.HttpsURLConnection)urli.openConnection();
Note this uses classes from C:\Program Files\IBM\SDP70\runtimes\base_v51\java\jre\lib\ibmjsseprovider.jar, so it needs to be in classpath when compiling.
Now this way I didn't get a cast exception from using HttpsURLConnection. The point is one can't instantiate javax.net.ssl.HttpsURLConnection, because RAD7's WAS5.1 can't cast it into its own class (wish it could).
Also, I still couldn't use the javax.net.ssl.HttpsURLConnection.setHostnameVerifier method, because com.ibm.net.ssl.internal.www.protocol.https.HttpsURLConnection doesn't have it... So the result was pretty much the same as using a HttpURLConnection as I previously instructed. Well, I don't really need that method in practice, but I suppose one might need it in some situation. The IBM URL I quoted said WAS5.1 doesn't really compare DNS host name with the certificate host name though, so I suppose one doesn't need to programmatically set a dummy HostnameVerifier in WAS5.1.