public CIFSContext withGuestCrendentials () {
        return wrap(this.delegate.withGuestCrendentials());
    }


    @Override
    public boolean renewCredentials ( String locationHint, Throwable error ) {
        return this.delegate.renewCredentials(locationHint, error);
    }


    @Override
    public NameServiceClient getNameServiceClient () {
        return this.delegate.getNameServiceClient();
    }

    public Credentials getCredentials () {
        return this.creds;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.CIFSContext#renewCredentials(java.lang.String, java.lang.Throwable)
     */
    @Override
    public boolean renewCredentials ( String locationHint, Throwable error ) {
        Credentials cred = getCredentials();
        if ( cred instanceof SmbRenewableCredentials ) {

     */
    protected abstract Credentials getDefaultCredentials ();


    /**
     * {@inheritDoc}
     *
     * @see jcifs.CIFSContext#renewCredentials(java.lang.String, java.lang.Throwable)
     */
    @Override
    public boolean renewCredentials ( String locationHint, Throwable error ) {
        return false;
    }


    /**
     * {@inheritDoc}
     * 
     *

     */
    CIFSContext withCredentials ( Credentials creds );


    /**
     * @param locationHint
     * @param error
     * @return whether new credentials are obtained
     */
    boolean renewCredentials ( String locationHint, Throwable error );

                }
                catch ( Exception e ) {
                    log.debug("Retry also failed", e);
                    throw sae;
                }
            }
            else if ( this.ctx.renewCredentials(loc.getURL().toString(), sae) ) {
                log.debug("Trying to renew credentials after auth error");