Method fillIn

app/src/main/java/eu/faircode/email/ContactInfo.java:1116–1140

(Address[] addresses, boolean prefer_contact, boolean only_contact)

    }

    static Address[] fillIn(Address[] addresses, boolean prefer_contact, boolean only_contact) {
        if (addresses == null)
            return null;

        Address[] modified = new Address[addresses.length];
        for (int i = 0; i < addresses.length; i++) {
            InternetAddress address = (InternetAddress) addresses[i];
            String email = address.getAddress();
            String personal = (only_contact ? null : address.getPersonal());
            if (!TextUtils.isEmpty(email)) {
                Lookup lookup = emailLookup.get(email.toLowerCase(Locale.ROOT));
                if (lookup != null &&
                        (TextUtils.isEmpty(personal) || prefer_contact))
                    personal = lookup.displayName;
            }
            try {
                modified[i] = new InternetAddress(email, personal, StandardCharsets.UTF_8.name());
            } catch (UnsupportedEncodingException ex) {
                Log.e(ex);
                modified[i] = address;
            }
        }

        return modified;
    }

    private static Map<String, Lookup> getEmailLookup(Context context) {
        Map<String, Lookup> all = new ConcurrentHashMap<>();