private WebApiUtil() {
    }

    public static void setObject(final String name, final Object value) {
        LaRequestUtil.getOptionalRequest().ifPresent(req -> req.setAttribute(name, value));
    }

    @SuppressWarnings("unchecked")
    public static <T> T getObject(final String name) {
        return LaRequestUtil.getOptionalRequest().map(req -> (T) req.getAttribute(name)).orElse(null);

        }
        return sequence;
    }

    public KerberosApRequest(ASN1Sequence seq, KerberosKey[] keys) throws PACDecodingException {
        Enumeration<?> fields = seq.getObjects();
        while ( fields.hasMoreElements() ) {
            ASN1TaggedObject tagged = ASN1Util.as(ASN1TaggedObject.class, fields.nextElement());
            switch ( tagged.getTagNo() ) {
            case 0:

        final GetObjectArgs args = GetObjectArgs.builder().bucket(fessConfig.getStorageBucket()).object(objectName).build();
        try (InputStream in = createClient(fessConfig).getObject(args)) {
            out.write(in);
        } catch (final Exception e) {
            throw new StorageException("Failed to download " + objectName, e);
        }
    }

                }
                ASN1Sequence sequence = ASN1Sequence.getInstance(tagged, true);
                Enumeration<ASN1Object> fields = sequence.getObjects();
                while ( fields.hasMoreElements() ) {
                    tagged = (ASN1TaggedObject) fields.nextElement();
                    switch ( tagged.getTagNo() ) {
                    case 0:

    }


    public KerberosCredentials ( String loginContextName ) throws LoginException {
        LoginContext lc = new LoginContext(loginContextName);
        lc.login();
        this.subject = lc.getSubject();
    }


    public KerberosKey[] getKeys () {
        List<Key> serverKeys = new ArrayList<>();

        Set<Object> serverPrivateCredentials = this.subject.getPrivateCredentials();

        }
        catch ( IOException e ) {
            throw new PACDecodingException("Malformed kerberos ticket", e);
        }

        Enumeration<?> fields = sequence.getObjects();
        while ( fields.hasMoreElements() ) {
            ASN1TaggedObject tagged = ASN1Util.as(ASN1TaggedObject.class, fields);

            switch ( tagged.getTagNo() ) {
            case 0: // Ticket Flags

            }
        }
        catch ( IOException e ) {
            throw new PACDecodingException("Malformed kerberos ticket", e);
        }

        Enumeration<?> fields = sequence.getObjects();
        while ( fields.hasMoreElements() ) {
            ASN1TaggedObject tagged = ASN1Util.as(ASN1TaggedObject.class, fields);
            switch ( tagged.getTagNo() ) {
            case 0:// Kerberos version

        catch ( IOException e ) {
            throw new PACDecodingException("Malformed kerberos ticket", e);
        }

        this.authorizations = new ArrayList<>();
        Enumeration<?> authElements = authSequence.getObjects();
        while ( authElements.hasMoreElements() ) {
            ASN1Sequence authElement = ASN1Util.as(ASN1Sequence.class, authElements);