@Nullable
    public static List<PrefLogTemplate> getLogTemplates() {
        try {
            return MAPPER.readValue(getString(R.string.pref_logTemplates, "[]"), new TypeReference<List<PrefLogTemplate>>() {
            });
        } catch (JsonProcessingException e) {
            Log.e("Failure parsing log templates: " + e.getMessage());
            return new ArrayList<>();
        }
    }
return a list of preference keys containing sensitive data
main/src/main/java/cgeo/geocaching/settings/Settings.java