}
            if (converter == null) {
                return value;
            }
        }
        try {
            if (value.getClass() == String.class) {
                return converter.getAsObject((String) value);
            }
            return converter.getAsString(value);
        } catch (final Throwable cause) {
            throw new ConverterRuntimeException(destPropertyName, value, cause);
        }

    /**
     * {@inheritDoc}
     *
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString () {
        return "Kerb5Authenticatior[subject=" + ( this.getSubject() != null ? this.getSubject().getPrincipals() : null ) + ",user=" + this.user
                + ",realm=" + this.realm + "]";
    }

     *
     * @see jcifs.smb.Kerb5Authenticator#getSubject()
     */
    @Override
    public synchronized Subject getSubject () {
        if ( this.cachedSubject != null ) {
            return this.cachedSubject;
        }

        try {
            log.debug("Logging on");
            LoginContext lc;

	    Subject ps = super.getSubject();

            if ( this.configuration != null ) {

    }


    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();

    /**
     * @return subject associated with the credentials
     */
    Subject getSubject ();


    /**
     * @throws CIFSException
     * 
     */
    void refresh () throws CIFSException;

            putValue(data, "Sender", message.getSender());
            putValue(data, "Sent-Date", message.getSentDate());
            putValue(data, "Size", message.getSize());
            putValue(data, "Subject", message.getSubject());
            putValue(data, "Receipients", message.getAllRecipients());
            putValue(data, "To", message.getRecipients(Message.RecipientType.TO));

            log.debug("Initial session preauth hash " + Hexdump.toHexString(this.preauthIntegrityHash));
        }

        while ( true ) {
            Subject s = this.credentials.getSubject();
            if ( ctx == null ) {
                ctx = createContext(trans, tdomain, negoResp, !anonymous, s);
            }
            token = createToken(ctx, token, s);

            if ( token != null ) {

            }
        }


        @Override
        public Kerb5Authenticator clone () {
            Kerb5Authenticator auth = new RefreshableKerb5Authenticator(getSubject(), getUserDomain(), getUser(), getPassword());
            cloneInternal(auth, this);
            return auth;
        }
    }

        if ( t.isAssignableFrom(this.getClass()) ) {
            return (T) this;
        }
        return null;
    }


    @Override
    public Subject getSubject () {
        return null;
    }


    @Override
    public void refresh () throws CIFSException {}


    /**
     * 
     * {@inheritDoc}
     *