Verify Websphere Portal User's Password

There are two ways to verify user's password -

1) Use "UserRegistry"

public static boolean checkUserAuthenticatedLDAP(String userId, String password) {
        try {
              Context ctx = new InitialContext();
              com.ibm.websphere.security.UserRegistry reg = (com.ibm.websphere.security.UserRegistry) ctx.lookup("UserRegistry");
              String res = reg.checkPassword(userId, password);

return res != null;

        } catch (Exception ex) {
              return false;
        }
  }

2) Use "LoginContext"

/**
     * This method validates the user based on the user id and password
     * attributes, If the user id or password is not valid then throws Exception.
     *
     * @param userId
     * @param password
     * @return boolean
     * @throws Exception
     */
    public boolean checkUserAuthenticated(String userId, String password) throws Exception {
        javax.security.auth.login.LoginContext loginContext = null;
        Subject subject = null;
        try {
            loginContext = new javax.security.auth.login.LoginContext("WSLogin", new com.ibm.websphere.security.auth.callback.WSCallbackHandlerImpl(userId, password));
        } catch (javax.security.auth.login.LoginException e) {
            throw new Exception("Cannot create LoginContext", e);
        }
        try {
            loginContext.login();
            subject = loginContext.getSubject();
        } catch (com.ibm.websphere.security.auth.WSLoginFailedException e) {
            throw new Exception("Password is incorrect", e);
        } catch (Exception e) {
            throw new Exception("Unknown username", e);
        }
        if (subject == null)
            throw new Exception("Password is incorrect");

        return true;
    }