*
     * @return the context handle
     */
    public byte[] getContextHandle() {
        return contextHandle != null ? contextHandle.clone() : null;
    }

    @Override
    protected void encodeWitnessParameters(NdrBuffer buf) throws NdrException {
        // Encode input parameters for WitnessUnregister

        // Context handle (20 bytes) - this is both input and output (modified)
        if (contextHandle != null) {

     *
     * @param buf the NDR buffer to encode into
     * @throws NdrException if encoding fails
     */
    protected abstract void encodeWitnessParameters(NdrBuffer buf) throws NdrException;

    /**
     * Decodes the witness RPC message parameters from NDR format.
     * Subclasses must implement this method to decode their specific parameters.
     *

     */
    public boolean isValidResponse() {
        return isSuccess() && responseSequenceNumber == sequenceNumber;
    }

    @Override
    protected void encodeWitnessParameters(NdrBuffer buf) throws NdrException {
        // Encode input parameters for WitnessHeartbeat

        // Context handle (20 bytes)
        if (contextHandle != null) {

     */
    public void setContextHandle(byte[] contextHandle) {
        this.contextHandle = contextHandle != null ? contextHandle.clone() : null;
    }

    @Override
    protected void encodeWitnessParameters(NdrBuffer buf) throws NdrException {
        // Encode input parameters for WitnessRegister

        // Version (WITNESS_VERSION structure)
        if (version != null) {