return null;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Request#setRequestCredits(int)
     */
    @Override
    public void setRequestCredits ( int credits ) {
        setCredit(credits);
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlockRequest#setTid(int)

    @Override
    public int getCreditCost () {
        return 1;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Request#setRequestCredits(int)
     */
    @Override
    public void setRequestCredits ( int credits ) {
        setCredit(credits);
    }


    /**
     * {@inheritDoc}
     *

public interface Request extends Message {

    /**
     * @return number of credits this request requires
     */
    int getCreditCost ();


    /**
     * @param credits
     */
    void setRequestCredits ( int credits );


    /**
     * @return whether this is a cancel request
     */
    boolean isCancel ();


    /**
     * @return chained request
     */
    Request getNext ();

    @Override
    public int getGrantedCredits () {
        return 1;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Request#setRequestCredits(int)
     */
    @Override
    public void setRequestCredits ( int credits ) {

    }


    /**
     * @return the command
     */
    @Override
    public final int getCommand () {
        return this.command;

        Smb2NegotiateResponse r = null;
        byte[] negoReqBuffer = null;
        byte[] negoRespBuffer = null;
        try {
            smb2neg.setRequestCredits(Math.max(1, this.desiredCredits - this.credits.availablePermits()));

            int reqLen = negotiateWrite(smb2neg, first != null);