How to make the JMX custom authentication work ?

Question

I am using the password and access file based authentication on JMX. When building my JMXConnectorServer, i use the property names and it works fine.
    Map<String, String> env = new HashMap<String, String>();
    env.put(ApplicationProperties.JMX_PWD_FILE_PROP, pwdFile);
    env.put(ApplicationProperties.JMX_ACCESS_FILE_PROP, accFile);
    connectorServer = JMXConnectorServerFactory.newJMXConnectorServer(jmxServiceURL, env, mBeanServer);However, now i want to use a custom authenticator and i implemented my own LoginModule to have a encrypted password in the password file. Thus the ideas is to have an encrypted password and plain text user name in the password file.
    public class ABCDJMXLoginModule implements LoginModule {
        private CallbackHandler callbackHandler;
        private Subject subject;
        private String u_username;
        private String u_password;
        private JMXPrincipal user;
        private Properties userCredentials;
        private String passwordFile;
        private String f_username;
        private String f_password;
        private static final Logger logger = LoggerFactory.getLogger(ABCDJMXLoginModule.class);
        public boolean abort() throws LoginException {
            // TODO Auto-generated method stub
            return false;
        public boolean commit() throws LoginException {
            // TODO Auto-generated method stub
            return true;
        public void initialize(Subject subject, CallbackHandler callbackHandler, Map<String, ?> sharedState,
                Map<String, ?> options) {
            this.subject = subject;
            this.callbackHandler = callbackHandler;
        public boolean login() throws LoginException {
            try {
                attemptLogin();
                loadPasswordFile();
            } catch (Exception e) {
                logger.info("Exception, e");
            if (u_username == null || u_password == null) {
                throw new LoginException("Either no username or no password specified");
            logger.info("Password from user and file : " + u_password + " :: " + f_password);
            if (u_password.equals(f_password)) {
                return true;
            return false;
        public boolean logout() throws LoginException {
            // TODO Auto-generated method stub
            return true;
        private void attemptLogin() throws LoginException {
            Callback[] callbacks = new Callback[2];
            callbacks[0] = new NameCallback("u_username");
            callbacks[1] = new PasswordCallback("u_password", false);
            try {
                callbackHandler.handle(callbacks);
            } catch (IOException e) {
                logger.error("IOException", e);
            } catch (UnsupportedCallbackException e) {
                logger.error("UnsupportedCallbackException", e);
            u_username = ((NameCallback) callbacks[0]).getName();
            user = new JMXPrincipal(u_username);
            char[] tmpPassword = ((PasswordCallback) callbacks[1]).getPassword();
            u_password = tmpPassword.toString();
            logger.info("UserName : " + u_username);
            logger.info("Password : " + u_password);
            System.arraycopy(tmpPassword, 0, u_password, 0, tmpPassword.length);
            ((PasswordCallback) callbacks[1]).clearPassword();
        private void loadPasswordFile() throws IOException {
            FileInputStream fis = null;
            passwordFile = "c:\\abcd.jmx.enc.password.file";
            try {
                fis = new FileInputStream(passwordFile);
            } catch (SecurityException e) {
                logger.error("Security Exception", e);
            BufferedInputStream bis = new BufferedInputStream(fis);
            userCredentials = new Properties();
            userCredentials.load(bis);
            bis.close();
            f_username = u_username;
            f_password = (String) userCredentials.get(f_username);
            logger.info("UserName before Decrypt : " + f_username);
            logger.info("Password from file before Decrypt : " + f_password);
            // decrypt the password from file and later compare it with user password from JConsole
            if (f_password != null) f_password = Cryptography.decrypt(f_password);
            logger.info("Password from file after Decrypt : " + f_password);
    }When i use the following code and try to connect via JConsole nothing happens.
    Map<String, String> env = new HashMap<String, String>();
    env.put(ApplicationProperties.JMX_PWD_FILE_PROP, pwdFile);
    env.put(ApplicationProperties.JMX_ACCESS_FILE_PROP, accFile);
    env.put("jmx.remote.x.login.config", "com.splwg.ejb.service.management.ABCDJMXLoginModule");
    connectorServer = JMXConnectorServerFactory.newJMXConnectorServer(jmxServiceURL, env, mBeanServer);Any ideas on why this happens ? For sure, i am also not coming into the ABCDJMXLoginModule class - I have some print statements there and none of them get printed. Any sort of ideas and solutions are appreciated. I tried with the property "com.sun.management.jmxremote.login.config" too. I was expecting that mentioning the property in the environment and passing it to the JMXCOnnectorServer would do all the trick.
Am i missing something ?

Answer 1

Hello dcloko_BR,
I downloaded and installed Lenovo´s The Lenovo Solution Center and now the solution center starts after pressing the blue button. Perhaps give it a try.
Edit: Upps sorry, only newer models are supported according to the readme.txt.
Best regards
Andreas
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