change to generic type for lists

    protected String currentWord;

    protected Scanner words;

    public static List frames;

    public static List refposs;

    public static List flavors;

    public static List units;

    public static List<String> frames;

    public static List<String> refposs;

    public static List<String> flavors;

    public static List<String> units;

    static

    {

        // default log level is debug.

        log = Logger.getLogger(Space.class);

        log.setLevel((Level)Level.DEBUG);

        frames = new ArrayList();

        frames = new ArrayList<String>();

        frames.add("ICRS");

        frames.add("FK5");

        frames.add("FK4");

        frames.add("GEO_D");

        frames.add("UNKNOWNFrame");

        refposs = new ArrayList();

        refposs = new ArrayList<String>();

        refposs.add("GEOCENTER");

        refposs.add("BARYCENTER");

        refposs.add("HELIOCENTER");

        refposs.add("PLUTO");

        refposs.add("UNKNOWNRefPos");

        flavors = new ArrayList();

        flavors = new ArrayList<String>();

        flavors.add("SPHER2");

        flavors.add("UNITSPHER");

        flavors.add("CART1");

        flavors.add("CART3");

        flavors.add("SPHER3");

        units = new ArrayList();

        units = new ArrayList<String>();

        units.add("deg");

        units.add("arcmin");

        units.add("arcsec");