private File removeInvalidChars(File xml) {
        String xml10pattern = "[^"
                + "\u0009\r\n"
                + "\u0020-\uD7FF"
                + "\uE000-\uFFFD"
                + "\ud800\udc00-\udbff\udfff"
                + "]";
        List<String> lines = new ArrayList<>();
        String line = null;

        try {
            FileReader fr = new FileReader(xml);
            BufferedReader br = new BufferedReader(fr);
            while ((line = br.readLine()) != null) {
                lines.add(line.replaceAll(xml10pattern, ""));
            }
            fr.close();
            br.close();

            FileWriter fw = new FileWriter(xml);
            BufferedWriter out = new BufferedWriter(fw);
            for (int i = 0; i < lines.size(); i++) {
                out.write(lines.get(i));
                if (i != lines.size() - 1)
                    out.write("\n");
            }
            out.flush();
            out.close();
        } catch (Exception e) {
            LOGGER.error(e.getMessage(), e);
        }
        return xml;
    }