luiz

public static List<Registro> getRegistros() throws IOException {
        InputStream is = new FileInputStream("teste.txt");
        InputStreamReader isr = new InputStreamReader(is);
        BufferedReader br = new BufferedReader(isr);

        List<Registro> registros = new ArrayList<>();
        String s = br.readLine();
        String subID;
        while (s != null) {
            subID = s.substring(0, s.indexOf(' '));
            String auxID[] = subID.split("_");
            s = s.substring(s.indexOf(' ') + 1, s.length());
            List<String> autores = new ArrayList<>();
            String aux[] = s.split("<>");
            String autoresList[] = aux[0].split(";");
            for (int i = 0; i < autoresList.length; i++) {
                autores.add(autoresList[i]);
            }
            String titulo = aux.length > 1 ? aux[1] : "";
            String congresso = aux.length > 2 ? aux[2] : "";
            Registro r = new Registro(autores, titulo, congresso, Integer.parseInt(auxID[0]),
                    Integer.parseInt(auxID[1]));
            registros.add(r);
            s = br.readLine();
        }

        br.close();
        return registros;
    }