assert Debug.log("java mirror", Debug.show(symbol) + " -> " + mirror);
assert Debug.log("java mirror: ", symbol, " -> ", mirror);
    public Method getMethod(Symbol symbol) {        Object value = methods.get(symbol);        if (value != null) return (Method)value;        Method mirror = getMethod0(symbol);        assert Debug.log("java mirror", Debug.show(symbol) + " -> " + mirror);        methods.put(symbol, mirror);        return mirror;    }