refactoring java code

Hi,
Following is my main function :

 public static void main(String[] args) throws Exception {
        String env = System.getProperty("FLOCK_APPS_CONFIG");
        int port=0;
        try {
            InputStream in = new FileInputStream(env);
            Properties props = new Properties();
            props.load(in);
            PropertyConfigurator.configure(props);
            port = Integer.parseInt(props.getProperty("port"));
        }
        catch (Exception e)
        {
            logger.log(Level.SEVERE,"Error accessing config File : "+env,e);
            System.exit(1);
        }
        AppStart appStart = new AppStart(port);
        try {
            appStart.start();
            appStart.waitForInterrupt();
        } finally {
            appStart.stop();
        }
        System.exit(1);
    }

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I want to know experts comment on this. If i can improve it in some way..
Some things that probably can be changed are :
1) I am assigning int port = 0
which actually does not make any sense as i want the port to be read from a file and if i cannot read it
applications stops.
2) there is one try catch block and one try finally

Is this code fine or there is some improvement scope in it ?

Thanks