public static synchronized Subscriber getInstance() { if (myself == null) { System.err.println("Need Location in order to Start Subscriber - please use other getInstance method"); System.exit(1);
public static synchronized Subscriber getInstance(String siena_location) { if (myself == null) { myself = new Subscriber(siena_location);
    public static synchronized Subscriber getInstance() {	if (myself == null) {	    System.err.println("Need Location in order to Start Subscriber - please use other getInstance method");	    System.exit(1);        }        return myself;    }