Jaas database login module

Question

Please help,
using JDeveloper 10.1.3.3. and OAS 10.1.3.1 I've downloaded DBLoginModule and I'm trying to adjust it for SSO, but without success, I've searched all the posts and tried everything that was suggested but without any progress.
import oracle.security.jazn.callback.IdentityCallback;
  public boolean login() throws LoginException
    log("login called on DBSystemLoginModule",LOG_ALL);
    // set logon success to false
    _logonSucceeded=false;
    if (_callbackHandler == null)
      log("Error: "+MESSAGE_KEY_NO_CALLBACK_HANDLER,LOG_ALL);
      throw new LoginException (LOGGING_PREFIX+"Error: "+MESSAGE_KEY_NO_CALLBACK_HANDLER);
      try{
          IdentityCallback icb = new IdentityCallback();
          Callback[] callback = {icb, new NameCallback("Username"), new PasswordCallback("Password:", false)};
          _callbackHandler.handle(callback);
          if (icb.isIdentityAsserted()) {
              _username = icb.getIdentity();
              char[] pas = {};
              _logonSucceeded = this.performDbAuthentication(_username, pas);
              return _logonSucceeded;
          }else{
          Callback[] callbacks = new Callback[NUM_CALLBACKS];
          callbacks[USERNAME_CALLBACK_INDEX] = new NameCallback("Username");
          callbacks[PASSWORD_CALLBACK_INDEX] = new PasswordCallback("Password:",false);
              log("Calling callbackhandler ... ",LOG_ALL);
            //This has not been asserted yet, so do the authentication and then grab the roles.
            _username = ((NameCallback)callback[1]).getName();
            _password = ((PasswordCallback)callback[2]).getPassword();
              log("Username returned by callback = "+_username,LOG_AUTH);
              _logonSucceeded = this.performDbAuthentication(_username, _password);
              log("Logon Successful = "+_logonSucceeded,LOG_AUTH);
              return _logonSucceeded;
     catch (java.io.IOException e)
          log("Login error: " +e.getMessage() + "\n" + e.toString(),LOG_AUTH);
                   // Log io exception for debug
                   throw new LoginException(LOGGING_PREFIX+"Login error: " +
                        e.getMessage() + "\n" + e.toString());
         catch (UnsupportedCallbackException e)
                   // Log unsupported callback exception for debug
                   throw new LoginException(LOGGING_PREFIX+"Callback error: " +
                        e.getMessage() + "\n" + e.getCallback().toString() +
                        " not available\n");
  }also I've tried to force _logonSucceeded if isAsserted is true but without success
          if (icb.isIdentityAsserted()) {
              _username = icb.getIdentity();
              return true;
          }else{
...When I test http://server:7787/jsso/SSOLogin and try to login everything is okay, then I test application before including into SSO (http://server:7787/jsso/Application/faces/index.jspx) and also everything is okay, but when I include application into SSO and try to login, nothing happens, I cannot pass login screen.
The only message in log is Error: [JAZN] [GenericAuthenticator] Error: [JAZN] User [test] does not exist in system.
I think this is due to DBLogin module and IdentityCallback, but I'm not sure. Please can anyone help me with this issue, I'm out of ideas and don't know what else to try.
Thanks in advance,
Tomislav.

Answer 1

Many Thanks.
I did set up a session listener to help in this area. It tells me when the session is invalidated but from there I'm not sure whats happening. Some event is invoking the JAAS database module and I can't tell where that is happening.