/**
 * Represents a witness heartbeat request as defined in MS-SWN specification.
 * Used to maintain active witness registrations.
 */
public class WitnessHeartbeatRequest {
    /**
     * Creates a new witness heartbeat request.
     */
    public WitnessHeartbeatRequest() {
        // Default constructor
    }

    private String registrationId;
    private long sequenceNumber;
    private byte[] contextHandle;

                sendHeartbeat(registration);
            }
        }
    }
    
    private void sendHeartbeat(WitnessRegistration registration) {
        try {
            WitnessHeartbeatRequest request = new WitnessHeartbeatRequest();
            request.setRegistrationId(registration.getRegistrationId());
            request.setSequenceNumber(registration.getNextSequenceNumber());
            

     *
     * @param registration the registration
     */
    private void sendHeartbeat(WitnessRegistration registration) {
        try {
            WitnessHeartbeatRequest request = new WitnessHeartbeatRequest();
            request.setRegistrationId(registration.getRegistrationId());
            request.setSequenceNumber(registration.getNextSequenceNumber());

     *
     * @param request the heartbeat request
     * @return the heartbeat response
     * @throws IOException if the RPC call fails
     */
    public WitnessHeartbeatResponse heartbeat(WitnessHeartbeatRequest request) throws IOException {
        if (!connected) {
            throw new IOException("Witness client not connected");
        }

        try {