public static void main()

in SimpleProducer.java [62:136]
55 lines of code
9 McCabe index (conditional complexity)

    public static void main(String[] args) {
        Context jndiContext = null;
        ConnectionFactory connectionFactory = null;
        Connection connection = null;
        Session session = null;
        Destination destination = null;
        MessageProducer producer = null;
        String destinationName = null;
        final int numMsgs;

        if ((args.length < 1) || (args.length > 2)) {
            LOG.info("Usage: java SimpleProducer <destination-name> [<number-of-messages>]");
            System.exit(1);
        }
        destinationName = args[0];
        LOG.info("Destination name is " + destinationName);
        if (args.length == 2) {
            numMsgs = (new Integer(args[1])).intValue();
        } else {
            numMsgs = 1;
        }

        /*
         * Create a JNDI API InitialContext object
         */
        try {
            jndiContext = new InitialContext();
        } catch (NamingException e) {
            LOG.info("Could not create JNDI API context: " + e.toString());
            System.exit(1);
        }

        /*
         * Look up connection factory and destination.
         */
        try {
            connectionFactory = (ConnectionFactory)jndiContext.lookup("ConnectionFactory");
            destination = (Destination)jndiContext.lookup(destinationName);
        } catch (NamingException e) {
            LOG.info("JNDI API lookup failed: " + e);
            System.exit(1);
        }

        /*
         * Create connection. Create session from connection; false means
         * session is not transacted. Create sender and text message. Send
         * messages, varying text slightly. Send end-of-messages message.
         * Finally, close connection.
         */
        try {
            connection = connectionFactory.createConnection();
            session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            producer = session.createProducer(destination);
            TextMessage message = session.createTextMessage();
            for (int i = 0; i < numMsgs; i++) {
                message.setText("This is message " + (i + 1));
                LOG.info("Sending message: " + message.getText());
                producer.send(message);
            }

            /*
             * Send a non-text control message indicating end of messages.
             */
            producer.send(session.createMessage());
        } catch (JMSException e) {
            LOG.info("Exception occurred: " + e);
        } finally {
            if (connection != null) {
                try {
                    connection.close();
                } catch (JMSException e) {
                }
            }
        }
    }