return sequenceNumber.incrementAndGet();
    }

    /**
     * Updates the heartbeat timestamp to current time and resets failure count.
     */
    public void updateHeartbeat() {
        this.lastHeartbeat = System.currentTimeMillis();
        this.heartbeatFailures = 0;
    }

    /**
     * Increments the heartbeat failure count.
     */
    public void incrementHeartbeatFailures() {

    }

    /**
     * Gets the recommended heartbeat interval.
     *
     * @return the recommended heartbeat interval in milliseconds
     */
    public long getRecommendedHeartbeatInterval() {
        return recommendedHeartbeatInterval;
    }

    /**
     * Sets the recommended heartbeat interval.
     *
     * @param recommendedHeartbeatInterval the recommended heartbeat interval in milliseconds
     */

        }
    }

    /**
     * Sends a witness heartbeat.
     *
     * @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) {

            if (response != null && response.isSuccess()) {
                registration.updateHeartbeat();
            } else {
                log.warn("Witness heartbeat failed for: {}", registration.getRegistrationId());
                registration.incrementHeartbeatFailures();
            }

        } catch (Exception e) {

        String regId = mockService.registerWitness("\\\\server\\share", "192.168.1.100", 1);

        // Test successful heartbeat
        assertTrue(mockService.processHeartbeat(regId, 1));
        assertTrue(mockService.processHeartbeat(regId, 2));

        // Test heartbeat for non-existent registration
        assertFalse(mockService.processHeartbeat("non-existent", 1));

        // Clean up

        final Map<String, Object> map = new LinkedHashMap<>();
        map.put("type", "heartbeat");
        map.put("instanceId", "test-instance");
        map.put("createdTime", 1000L);

        final String json = coordinatorHelper.toJson(map);
        assertNotNull(json);
        assertTrue(json.contains("\"type\":\"heartbeat\""));
        assertTrue(json.contains("\"instanceId\":\"test-instance\""));

 */
package jcifs.internal.witness;

/**
 * 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
    }

        } catch (IOException e) {
            return "ncacn_ip_tcp:127.0.0.1[135]";
        }
    }

    /**
     * Simulate heartbeat processing
     *
     * @param registrationId the registration ID
     * @param sequenceNumber the sequence number
     * @return true if heartbeat was successful
     */
    public boolean processHeartbeat(String registrationId, long sequenceNumber) {

            WitnessHeartbeatResponse response = rpcClient.heartbeat(request);
            
            if (response.isSuccess()) {
                registration.updateHeartbeat();
            } else {
                log.warn("Witness heartbeat failed for: {}", registration.getRegistrationId());
            }
            
        } catch (Exception e) {
            log.debug("Heartbeat error for registration: {}", 

        registration.updateHeartbeat();

        // After update, should not be expired with long timeout
        assertFalse(registration.isExpired(60000));

        // Verify heartbeat was actually updated
        assertTrue(registration.getLastHeartbeat() > initialTime);
    }

    @Test
    void testExpiration() throws InterruptedException {