cmdLine = System.getProperty("jnode.cmdline", "");
cmdLine = (String)AccessController.doPrivileged(new GetPropertyAction("jnode.cmdline", ""));
    public DefaultDeviceManager(ExtensionPoint findersEP,            ExtensionPoint mappersEP) {        if (findersEP == null) { throw new IllegalArgumentException(                "finders extension-point cannot be null"); }        if (mappersEP == null) { throw new IllegalArgumentException(                "mappers extension-point cannot be null"); }        cmdLine = System.getProperty("jnode.cmdline", "");        this.systemBus = new SystemBus();        this.findersEP = findersEP;        this.mappersEP = mappersEP;        findersEP.addListener(this);        mappersEP.addListener(this);        refreshFinders();        refreshMappers();    }